openstack/trove
Code Issues Proposed changes

Refreshed Oslo Code

Browse Source 
Change to auth_tok to auth_token
    Added dependency on oslo.config package
    Remove reddwarf.openstack.common.cfg

Change-Id: I61af7a54d09f3d1d6b6efe470ea6308be8ace2e7
Fixes: bug #1175757
This commit is contained in:
justin-hopper 2013-04-26 14:50:19 -07:00
parent 08a57d7035
commit 770c0fd83b
43 changed files with 1737 additions and 2218 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
bin/reddwarf-guestagent
View File

@ -39,7 +39,7 @@ if os.path.exists(os.path.join(possible_topdir, 'reddwarf', '__init__.py')):
from reddwarf.common import cfg
from reddwarf.common import rpc
from reddwarf.guestagent import dbaas
from reddwarf.openstack.common import cfg as openstack_cfg
from oslo.config import cfg as openstack_cfg
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common import service
from reddwarf.db import get_db_api
@ -62,4 +62,4 @@ if __name__ == '__main__':
except RuntimeError as error:
import traceback
print traceback.format_exc()
sys.exit("ERROR: %s" % error)
sys.exit("ERROR: %s" % error)

2
bin/reddwarf-mgmt-taskmanager
View File

@ -38,7 +38,7 @@ if os.path.exists(os.path.join(possible_topdir, 'reddwarf', '__init__.py')):
from reddwarf.common import cfg
from reddwarf.common import rpc
from reddwarf.openstack.common import cfg as openstack_cfg
from oslo.config import cfg as openstack_cfg
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common import service
from reddwarf.db import get_db_api

3
bin/reddwarf-server
View File

@ -34,8 +34,7 @@ if os.path.exists(os.path.join(possible_topdir, 'reddwarf', '__init__.py')):
sys.path.insert(0, possible_topdir)
from reddwarf.common import cfg
from reddwarf.openstack.common import cfg as openstack_cfg
from reddwarf.openstack.common import service
from oslo.config import cfg as openstack_cfg
from reddwarf.openstack.common import log as logging
from reddwarf.common import wsgi
from reddwarf.db import get_db_api

2
bin/reddwarf-taskmanager
View File

@ -38,7 +38,7 @@ if os.path.exists(os.path.join(possible_topdir, 'reddwarf', '__init__.py')):
from reddwarf.common import cfg
from reddwarf.common import rpc
from reddwarf.openstack.common import cfg as openstack_cfg
from oslo.config import cfg as openstack_cfg
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common import service
from reddwarf.db import get_db_api

1
openstack-common.conf
View File

@ -2,6 +2,5 @@
# The list of modules to copy from openstack-common
modules=middleware,notifier,rpc,cfg,context,eventlet_backdoor,exception,excutils,fileutils,gettextutils,importutils,iniparser,jsonutils,local,lockutils,log,loopingcall,network_utils,pastedeploy,periodic_task,policy,processutils,service,setup,testutils,threadgroup,timeutils,utils,uuidutils,version,wsgi
# The base module to hold the copy of openstack.common
base=reddwarf

2
reddwarf/common/cfg.py
View File

@ -16,7 +16,7 @@
# under the License.
"""Routines for configuring Reddwarf."""
from reddwarf.openstack.common import cfg
from oslo.config import cfg
common_opts = [
cfg.StrOpt('sql_connection',

3
reddwarf/common/context.py
View File

@ -49,8 +49,7 @@ class ReddwarfContext(context.RequestContext):
def to_dict(self):
parent_dict = super(ReddwarfContext, self).to_dict()
parent_dict.update({'limit': self.limit,
'marker': self.marker,
'auth_tok': parent_dict['auth_token'],
'marker': self.marker
})
return parent_dict

10
reddwarf/common/remote.py
View File

@ -37,9 +37,9 @@ def create_guest_client(context, id):
def create_nova_client(context):
client = Client(context.user, context.auth_tok, project_id=context.tenant,
auth_url=PROXY_AUTH_URL)
client.client.auth_token = context.auth_tok
client = Client(context.user, context.auth_token,
project_id=context.tenant, auth_url=PROXY_AUTH_URL)
client.client.auth_token = context.auth_token
client.client.management_url = "%s/%s/" % (COMPUTE_URL, context.tenant)
return client
@ -48,9 +48,9 @@ def create_nova_client(context):
def create_nova_volume_client(context):
# Quite annoying but due to a paste config loading bug.
# TODO(hub-cap): talk to the openstack-common people about this
client = Client(context.user, context.auth_tok,
client = Client(context.user, context.auth_token,
project_id=context.tenant, auth_url=PROXY_AUTH_URL)
client.client.auth_token = context.auth_tok
client.client.auth_token = context.auth_token
client.client.management_url = "%s/%s/" % (VOLUME_URL, context.tenant)
return client

6
reddwarf/common/wsgi.py
View File

@ -307,7 +307,9 @@ class Resource(openstack_wsgi.Resource):
except exception.ReddwarfError as reddwarf_error:
LOG.debug(traceback.format_exc())
LOG.debug("Caught Reddwarf Error %s", reddwarf_error)
httpError = self._get_http_error(reddwarf_error)
LOG.debug("Mapped Error to %s", httpError)
return Fault(httpError(str(reddwarf_error), request=request))
except webob.exc.HTTPError as http_error:
LOG.debug(traceback.format_exc())
@ -600,7 +602,7 @@ class ContextMiddleware(openstack_wsgi.Middleware):
def process_request(self, request):
tenant_id = request.headers.get('X-Tenant-Id', None)
auth_tok = request.headers["X-Auth-Token"]
auth_token = request.headers["X-Auth-Token"]
user = request.headers.get('X-User', None)
roles = request.headers.get('X-Role', '').split(',')
is_admin = False
@ -609,7 +611,7 @@ class ContextMiddleware(openstack_wsgi.Middleware):
is_admin = True
break
limits = self._extract_limits(request.params)
context = rd_context.ReddwarfContext(auth_tok=auth_tok,
context = rd_context.ReddwarfContext(auth_token=auth_token,
tenant=tenant_id,
user=user,
is_admin=is_admin,

1787
reddwarf/openstack/common/cfg.py
View File

File diff suppressed because it is too large Load Diff

13
reddwarf/openstack/common/context.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
@ -23,11 +23,12 @@ context or provide additional information in their specific WSGI pipeline.
"""
import itertools
import uuid
from reddwarf.openstack.common import uuidutils
def generate_request_id():
return 'req-' + str(uuid.uuid4())
return 'req-%s' % uuidutils.generate_uuid()
class RequestContext(object):
@ -37,9 +38,9 @@ class RequestContext(object):
accesses the system, as well as additional request information.
"""
def __init__(self, auth_tok=None, user=None, tenant=None, is_admin=False,
def __init__(self, auth_token=None, user=None, tenant=None, is_admin=False,
read_only=False, show_deleted=False, request_id=None):
self.auth_tok = auth_tok
self.auth_token = auth_token
self.user = user
self.tenant = tenant
self.is_admin = is_admin
@ -55,7 +56,7 @@ class RequestContext(object):
'is_admin': self.is_admin,
'read_only': self.read_only,
'show_deleted': self.show_deleted,
'auth_token': self.auth_tok,
'auth_token': self.auth_token,
'request_id': self.request_id}

13
reddwarf/openstack/common/eventlet_backdoor.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2012 Openstack, LLC.
# Copyright (c) 2012 OpenStack Foundation.
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
@ -24,8 +24,7 @@ import traceback
import eventlet
import eventlet.backdoor
import greenlet
from reddwarf.openstack.common import cfg
from oslo.config import cfg
eventlet_backdoor_opts = [
cfg.IntOpt('backdoor_port',
@ -52,12 +51,20 @@ def _print_greenthreads():
print
def _print_nativethreads():
for threadId, stack in sys._current_frames().items():
print threadId
traceback.print_stack(stack)
print
def initialize_if_enabled():
backdoor_locals = {
'exit': _dont_use_this, # So we don't exit the entire process
'quit': _dont_use_this, # So we don't exit the entire process
'fo': _find_objects,
'pgt': _print_greenthreads,
'pnt': _print_nativethreads,
}
if CONF.backdoor_port is None:

2
reddwarf/openstack/common/excutils.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# Copyright 2011 OpenStack Foundation.
# Copyright 2012, Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may

23
reddwarf/openstack/common/gettextutils.py
View File

@ -24,10 +24,27 @@ Usual usage in an openstack.common module:
"""
import gettext
import os
t = gettext.translation('openstack-common', 'locale', fallback=True)
_localedir = os.environ.get('reddwarf'.upper() + '_LOCALEDIR')
_t = gettext.translation('reddwarf', localedir=_localedir, fallback=True)
def _(msg):
return t.ugettext(msg)
return _t.ugettext(msg)
def install(domain):
"""Install a _() function using the given translation domain.
Given a translation domain, install a _() function using gettext's
install() function.
The main difference from gettext.install() is that we allow
overriding the default localedir (e.g. /usr/share/locale) using
a translation-domain-specific environment variable (e.g.
NOVA_LOCALEDIR).
"""
gettext.install(domain,
localedir=os.environ.get(domain.upper() + '_LOCALEDIR'),
unicode=True)

10
reddwarf/openstack/common/importutils.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
@ -57,3 +57,11 @@ def import_module(import_str):
"""Import a module."""
__import__(import_str)
return sys.modules[import_str]
def try_import(import_str, default=None):
"""Try to import a module and if it fails return default."""
try:
return import_module(import_str)
except ImportError:
return default

87
reddwarf/openstack/common/jsonutils.py
View File

@ -34,15 +34,27 @@ This module provides a few things:
import datetime
import functools
import inspect
import itertools
import json
import types
import xmlrpclib
from reddwarf.openstack.common import timeutils
def to_primitive(value, convert_instances=False, level=0):
_nasty_type_tests = [inspect.ismodule, inspect.isclass, inspect.ismethod,
inspect.isfunction, inspect.isgeneratorfunction,
inspect.isgenerator, inspect.istraceback, inspect.isframe,
inspect.iscode, inspect.isbuiltin, inspect.isroutine,
inspect.isabstract]
_simple_types = (types.NoneType, int, basestring, bool, float, long)
def to_primitive(value, convert_instances=False, convert_datetime=True,
level=0, max_depth=3):
"""Convert a complex object into primitives.
Handy for JSON serialization. We can optionally handle instances,
@ -56,17 +68,30 @@ def to_primitive(value, convert_instances=False, level=0):
Therefore, convert_instances=True is lossy ... be aware.
"""
nasty = [inspect.ismodule, inspect.isclass, inspect.ismethod,
inspect.isfunction, inspect.isgeneratorfunction,
inspect.isgenerator, inspect.istraceback, inspect.isframe,
inspect.iscode, inspect.isbuiltin, inspect.isroutine,
inspect.isabstract]
for test in nasty:
if test(value):
return unicode(value)
# handle obvious types first - order of basic types determined by running
# full tests on nova project, resulting in the following counts:
# 572754 <type 'NoneType'>
# 460353 <type 'int'>
# 379632 <type 'unicode'>
# 274610 <type 'str'>
# 199918 <type 'dict'>
# 114200 <type 'datetime.datetime'>
# 51817 <type 'bool'>
# 26164 <type 'list'>
# 6491 <type 'float'>
# 283 <type 'tuple'>
# 19 <type 'long'>
if isinstance(value, _simple_types):
return value
# value of itertools.count doesn't get caught by inspects
# above and results in infinite loop when list(value) is called.
if isinstance(value, datetime.datetime):
if convert_datetime:
return timeutils.strtime(value)
else:
return value
# value of itertools.count doesn't get caught by nasty_type_tests
# and results in infinite loop when list(value) is called.
if type(value) == itertools.count:
return unicode(value)
@ -78,47 +103,41 @@ def to_primitive(value, convert_instances=False, level=0):
if getattr(value, '__module__', None) == 'mox':
return 'mock'
if level > 3:
if level > max_depth:
return '?'
# The try block may not be necessary after the class check above,
# but just in case ...
try:
recursive = functools.partial(to_primitive,
convert_instances=convert_instances,
convert_datetime=convert_datetime,
level=level,
max_depth=max_depth)
if isinstance(value, dict):
return dict((k, recursive(v)) for k, v in value.iteritems())
elif isinstance(value, (list, tuple)):
return [recursive(lv) for lv in value]
# It's not clear why xmlrpclib created their own DateTime type, but
# for our purposes, make it a datetime type which is explicitly
# handled
if isinstance(value, xmlrpclib.DateTime):
value = datetime.datetime(*tuple(value.timetuple())[:6])
if isinstance(value, (list, tuple)):
o = []
for v in value:
o.append(to_primitive(v, convert_instances=convert_instances,
level=level))
return o
elif isinstance(value, dict):
o = {}
for k, v in value.iteritems():
o[k] = to_primitive(v, convert_instances=convert_instances,
level=level)
return o
elif isinstance(value, datetime.datetime):
if convert_datetime and isinstance(value, datetime.datetime):
return timeutils.strtime(value)
elif hasattr(value, 'iteritems'):
return to_primitive(dict(value.iteritems()),
convert_instances=convert_instances,
level=level + 1)
return recursive(dict(value.iteritems()), level=level + 1)
elif hasattr(value, '__iter__'):
return to_primitive(list(value),
convert_instances=convert_instances,
level=level)
return recursive(list(value))
elif convert_instances and hasattr(value, '__dict__'):
# Likely an instance of something. Watch for cycles.
# Ignore class member vars.
return to_primitive(value.__dict__,
convert_instances=convert_instances,
level=level + 1)
return recursive(value.__dict__, level=level + 1)
else:
if any(test(value) for test in _nasty_type_tests):
return unicode(value)
return value
except TypeError:
# Class objects are tricky since they may define something like

13
reddwarf/openstack/common/local.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
@ -26,6 +26,9 @@ class WeakLocal(corolocal.local):
def __getattribute__(self, attr):
rval = corolocal.local.__getattribute__(self, attr)
if rval:
# NOTE(mikal): this bit is confusing. What is stored is a weak
# reference, not the value itself. We therefore need to lookup
# the weak reference and return the inner value here.
rval = rval()
return rval
@ -34,4 +37,12 @@ class WeakLocal(corolocal.local):
return corolocal.local.__setattr__(self, attr, value)
# NOTE(mikal): the name "store" should be deprecated in the future
store = WeakLocal()
# A "weak" store uses weak references and allows an object to fall out of scope
# when it falls out of scope in the code that uses the thread local storage. A
# "strong" store will hold a reference to the object so that it never falls out
# of scope.
weak_store = WeakLocal()
strong_store = corolocal.local

2
reddwarf/openstack/common/lockutils.py
View File

@ -26,7 +26,7 @@ import weakref
from eventlet import semaphore
from reddwarf.openstack.common import cfg
from oslo.config import cfg
from reddwarf.openstack.common import fileutils
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import log as logging

154
reddwarf/openstack/common/log.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# Copyright 2011 OpenStack Foundation.
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
@ -29,6 +29,7 @@ It also allows setting of formatting information through conf.
"""
import ConfigParser
import cStringIO
import inspect
import itertools
@ -40,28 +41,91 @@ import stat
import sys
import traceback
from reddwarf.openstack.common import cfg
from oslo.config import cfg
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import jsonutils
from reddwarf.openstack.common import local
from reddwarf.openstack.common import notifier
_DEFAULT_LOG_FORMAT = "%(asctime)s %(levelname)8s [%(name)s] %(message)s"
_DEFAULT_LOG_DATE_FORMAT = "%Y-%m-%d %H:%M:%S"
common_cli_opts = [
cfg.BoolOpt('debug',
short='d',
default=False,
help='Print debugging output (set logging level to '
'DEBUG instead of default WARNING level).'),
cfg.BoolOpt('verbose',
short='v',
default=False,
help='Print more verbose output (set logging level to '
'INFO instead of default WARNING level).'),
]
logging_cli_opts = [
cfg.StrOpt('log-config',
metavar='PATH',
help='If this option is specified, the logging configuration '
'file specified is used and overrides any other logging '
'options specified. Please see the Python logging module '
'documentation for details on logging configuration '
'files.'),
cfg.StrOpt('log-format',
default=_DEFAULT_LOG_FORMAT,
metavar='FORMAT',
help='A logging.Formatter log message format string which may '
'use any of the available logging.LogRecord attributes. '
'Default: %(default)s'),
cfg.StrOpt('log-date-format',
default=_DEFAULT_LOG_DATE_FORMAT,
metavar='DATE_FORMAT',
help='Format string for %%(asctime)s in log records. '
'Default: %(default)s'),
cfg.StrOpt('log-file',
metavar='PATH',
deprecated_name='logfile',
help='(Optional) Name of log file to output to. '
'If no default is set, logging will go to stdout.'),
cfg.StrOpt('log-dir',
deprecated_name='logdir',
help='(Optional) The base directory used for relative '
'--log-file paths'),
cfg.BoolOpt('use-syslog',
default=False,
help='Use syslog for logging.'),
cfg.StrOpt('syslog-log-facility',
default='LOG_USER',
help='syslog facility to receive log lines')
]
generic_log_opts = [
cfg.BoolOpt('use_stderr',
default=True,
help='Log output to standard error'),
cfg.StrOpt('logfile_mode',
default='0644',
help='Default file mode used when creating log files'),
]
log_opts = [
cfg.StrOpt('logging_context_format_string',
default='%(asctime)s %(levelname)s %(name)s [%(request_id)s '
'%(user)s %(tenant)s] %(instance)s'
'%(message)s',
default='%(asctime)s.%(msecs)03d %(process)d %(levelname)s '
'%(name)s [%(request_id)s %(user)s %(tenant)s] '
'%(instance)s%(message)s',
help='format string to use for log messages with context'),
cfg.StrOpt('logging_default_format_string',
default='%(asctime)s %(process)d %(levelname)s %(name)s [-]'
' %(instance)s%(message)s',
default='%(asctime)s.%(msecs)03d %(process)d %(levelname)s '
'%(name)s [-] %(instance)s%(message)s',
help='format string to use for log messages without context'),
cfg.StrOpt('logging_debug_format_suffix',
default='%(funcName)s %(pathname)s:%(lineno)d',
help='data to append to log format when level is DEBUG'),
cfg.StrOpt('logging_exception_prefix',
default='%(asctime)s %(process)d TRACE %(name)s %(instance)s',
default='%(asctime)s.%(msecs)03d %(process)d TRACE %(name)s '
'%(instance)s',
help='prefix each line of exception output with this format'),
cfg.ListOpt('default_log_levels',
default=[
@ -93,24 +157,9 @@ log_opts = [
'format it like this'),
]
generic_log_opts = [
cfg.StrOpt('logdir',
default=None,
help='Log output to a per-service log file in named directory'),
cfg.StrOpt('logfile',
default=None,
help='Log output to a named file'),
cfg.BoolOpt('use_stderr',
default=True,
help='Log output to standard error'),
cfg.StrOpt('logfile_mode',
default='0644',
help='Default file mode used when creating log files'),
]
CONF = cfg.CONF
CONF.register_cli_opts(common_cli_opts)
CONF.register_cli_opts(logging_cli_opts)
CONF.register_opts(generic_log_opts)
CONF.register_opts(log_opts)
@ -148,8 +197,8 @@ def _get_binary_name():
def _get_log_file_path(binary=None):
logfile = CONF.log_file or CONF.logfile
logdir = CONF.log_dir or CONF.logdir
logfile = CONF.log_file
logdir = CONF.log_dir
if logfile and not logdir:
return logfile
@ -258,7 +307,7 @@ class JSONFormatter(logging.Formatter):
class PublishErrorsHandler(logging.Handler):
def emit(self, record):
if ('reddwarf.openstack.common.notifier.log_notifier' in
CONF.notification_driver):
CONF.notification_driver):
return
notifier.api.notify(None, 'error.publisher',
'error_notification',
@ -275,18 +324,33 @@ def _create_logging_excepthook(product_name):
return logging_excepthook
class LogConfigError(Exception):
message = _('Error loading logging config %(log_config)s: %(err_msg)s')
def __init__(self, log_config, err_msg):
self.log_config = log_config
self.err_msg = err_msg
def __str__(self):
return self.message % dict(log_config=self.log_config,
err_msg=self.err_msg)
def _load_log_config(log_config):
try:
logging.config.fileConfig(log_config)
except ConfigParser.Error as exc:
raise LogConfigError(log_config, str(exc))
def setup(product_name):
"""Setup logging."""
sys.excepthook = _create_logging_excepthook(product_name)
if CONF.log_config:
try:
logging.config.fileConfig(CONF.log_config)
except Exception:
traceback.print_exc()
raise
_load_log_config(CONF.log_config)
else:
_setup_logging_from_conf(product_name)
_setup_logging_from_conf()
sys.excepthook = _create_logging_excepthook(product_name)
def set_defaults(logging_context_format_string):
@ -319,8 +383,8 @@ def _find_facility_from_conf():
return facility
def _setup_logging_from_conf(product_name):
log_root = getLogger(product_name).logger
def _setup_logging_from_conf():
log_root = getLogger(None).logger
for handler in log_root.handlers:
log_root.removeHandler(handler)
@ -358,21 +422,21 @@ def _setup_logging_from_conf(product_name):
if CONF.log_format:
handler.setFormatter(logging.Formatter(fmt=CONF.log_format,
datefmt=datefmt))
handler.setFormatter(LegacyFormatter(datefmt=datefmt))
else:
handler.setFormatter(LegacyFormatter(datefmt=datefmt))
if CONF.verbose or CONF.debug:
if CONF.debug:
log_root.setLevel(logging.DEBUG)
else:
elif CONF.verbose:
log_root.setLevel(logging.INFO)
else:
log_root.setLevel(logging.WARNING)
level = logging.NOTSET
for pair in CONF.default_log_levels:
mod, _sep, level_name = pair.partition('=')
level = logging.getLevelName(level_name)
logger = logging.getLogger(mod)
logger.setLevel(level)
for handler in log_root.handlers:
logger.addHandler(handler)
_loggers = {}
@ -424,7 +488,7 @@ class LegacyFormatter(logging.Formatter):
self._fmt = CONF.logging_default_format_string
if (record.levelno == logging.DEBUG and
CONF.logging_debug_format_suffix):
CONF.logging_debug_format_suffix):
self._fmt += " " + CONF.logging_debug_format_suffix
# Cache this on the record, Logger will respect our formated copy

66
reddwarf/openstack/common/loopingcall.py
View File

@ -46,12 +46,23 @@ class LoopingCallDone(Exception):
self.retvalue = retvalue
class LoopingCall(object):
class LoopingCallBase(object):
def __init__(self, f=None, *args, **kw):
self.args = args
self.kw = kw
self.f = f
self._running = False
self.done = None
def stop(self):
self._running = False
def wait(self):
return self.done.wait()
class FixedIntervalLoopingCall(LoopingCallBase):
"""A fixed interval looping call."""
def start(self, interval, initial_delay=None):
self._running = True
@ -73,11 +84,11 @@ class LoopingCall(object):
LOG.warn(_('task run outlasted interval by %s sec') %
-delay)
greenthread.sleep(delay if delay > 0 else 0)
except LoopingCallDone, e:
except LoopingCallDone as e:
self.stop()
done.send(e.retvalue)
except Exception:
LOG.exception(_('in looping call'))
LOG.exception(_('in fixed duration looping call'))
done.send_exception(*sys.exc_info())
return
else:
@ -88,8 +99,49 @@ class LoopingCall(object):
greenthread.spawn_n(_inner)
return self.done
def stop(self):
self._running = False
def wait(self):
return self.done.wait()
# TODO(mikal): this class name is deprecated in Havana and should be removed
# in the I release
LoopingCall = FixedIntervalLoopingCall
class DynamicLoopingCall(LoopingCallBase):
"""A looping call which sleeps until the next known event.
The function called should return how long to sleep for before being
called again.
"""
def start(self, initial_delay=None, periodic_interval_max=None):
self._running = True
done = event.Event()
def _inner():
if initial_delay:
greenthread.sleep(initial_delay)
try:
while self._running:
idle = self.f(*self.args, **self.kw)
if not self._running:
break
if periodic_interval_max is not None:
idle = min(idle, periodic_interval_max)
LOG.debug(_('Dynamic looping call sleeping for %.02f '
'seconds'), idle)
greenthread.sleep(idle)
except LoopingCallDone as e:
self.stop()
done.send(e.retvalue)
except Exception:
LOG.exception(_('in dynamic looping call'))
done.send_exception(*sys.exc_info())
return
else:
done.send(True)
self.done = done
greenthread.spawn(_inner)
return self.done

5
reddwarf/openstack/common/network_utils.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 OpenStack LLC.
# Copyright 2012 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
@ -19,7 +19,8 @@
Network-related utilities and helper functions.
"""
import logging
from reddwarf.openstack.common import log as logging
LOG = logging.getLogger(__name__)

4
reddwarf/openstack/common/notifier/api.py
View File

@ -15,7 +15,8 @@
import uuid
from reddwarf.openstack.common import cfg
from oslo.config import cfg
from reddwarf.openstack.common import context
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import importutils
@ -29,7 +30,6 @@ LOG = logging.getLogger(__name__)
notifier_opts = [
cfg.MultiStrOpt('notification_driver',
default=[],
deprecated_name='list_notifier_drivers',
help='Driver or drivers to handle sending notifications'),
cfg.StrOpt('default_notification_level',
default='INFO',

2
reddwarf/openstack/common/notifier/log_notifier.py
View File

@ -13,8 +13,8 @@
# License for the specific language governing permissions and limitations
# under the License.
from oslo.config import cfg
from reddwarf.openstack.common import cfg
from reddwarf.openstack.common import jsonutils
from reddwarf.openstack.common import log as logging

2
reddwarf/openstack/common/notifier/rpc_notifier.py
View File

@ -13,8 +13,8 @@
# License for the specific language governing permissions and limitations
# under the License.
from oslo.config import cfg
from reddwarf.openstack.common import cfg
from reddwarf.openstack.common import context as req_context
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import log as logging

52
reddwarf/openstack/common/notifier/rpc_notifier2.py Normal file
View File

@ -0,0 +1,52 @@
# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
'''messaging based notification driver, with message envelopes'''
from oslo.config import cfg
from reddwarf.openstack.common import context as req_context
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common import rpc
LOG = logging.getLogger(__name__)
notification_topic_opt = cfg.ListOpt(
'topics', default=['notifications', ],
help='AMQP topic(s) used for openstack notifications')
opt_group = cfg.OptGroup(name='rpc_notifier2',
title='Options for rpc_notifier2')
CONF = cfg.CONF
CONF.register_group(opt_group)
CONF.register_opt(notification_topic_opt, opt_group)
def notify(context, message):
"""Sends a notification via RPC"""
if not context:
context = req_context.get_admin_context()
priority = message.get('priority',
CONF.default_notification_level)
priority = priority.lower()
for topic in CONF.rpc_notifier2.topics:
topic = '%s.%s' % (topic, priority)
try:
rpc.notify(context, topic, message, envelope=True)
except Exception:
LOG.exception(_("Could not send notification to %(topic)s. "
"Payload=%(message)s"), locals())

4
reddwarf/openstack/common/processutils.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
@ -19,7 +19,6 @@
System-level utilities and helper functions.
"""
import logging
import random
import shlex
@ -27,6 +26,7 @@ from eventlet.green import subprocess
from eventlet import greenthread
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import log as logging
LOG = logging.getLogger(__name__)

84
reddwarf/openstack/common/rpc/__init__.py
View File

@ -25,8 +25,17 @@ For some wrappers that add message versioning to rpc, see:
rpc.proxy
"""
from reddwarf.openstack.common import cfg
import inspect
from oslo.config import cfg
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import importutils
from reddwarf.openstack.common import local
from reddwarf.openstack.common import log as logging
LOG = logging.getLogger(__name__)
rpc_opts = [
@ -57,17 +66,18 @@ rpc_opts = [
cfg.BoolOpt('fake_rabbit',
default=False,
help='If passed, use a fake RabbitMQ provider'),
#
# The following options are not registered here, but are expected to be
# present. The project using this library must register these options with
# the configuration so that project-specific defaults may be defined.
#
#cfg.StrOpt('control_exchange',
# default='nova',
# help='AMQP exchange to connect to if using RabbitMQ or Qpid'),
cfg.StrOpt('control_exchange',
default='openstack',
help='AMQP exchange to connect to if using RabbitMQ or Qpid'),
]
cfg.CONF.register_opts(rpc_opts)
CONF = cfg.CONF
CONF.register_opts(rpc_opts)
def set_defaults(control_exchange):
cfg.set_defaults(rpc_opts,
control_exchange=control_exchange)
def create_connection(new=True):
@ -83,10 +93,27 @@ def create_connection(new=True):
:returns: An instance of openstack.common.rpc.common.Connection
"""
return _get_impl().create_connection(cfg.CONF, new=new)
return _get_impl().create_connection(CONF, new=new)
def call(context, topic, msg, timeout=None):
def _check_for_lock():
if not CONF.debug:
return None
if ((hasattr(local.strong_store, 'locks_held')
and local.strong_store.locks_held)):
stack = ' :: '.join([frame[3] for frame in inspect.stack()])
LOG.warn(_('A RPC is being made while holding a lock. The locks '
'currently held are %(locks)s. This is probably a bug. '
'Please report it. Include the following: [%(stack)s].'),
{'locks': local.strong_store.locks_held,
'stack': stack})
return True
return False
def call(context, topic, msg, timeout=None, check_for_lock=False):
"""Invoke a remote method that returns something.
:param context: Information that identifies the user that has made this
@ -100,13 +127,17 @@ def call(context, topic, msg, timeout=None):
"args" : dict_of_kwargs }
:param timeout: int, number of seconds to use for a response timeout.
If set, this overrides the rpc_response_timeout option.
:param check_for_lock: if True, a warning is emitted if a RPC call is made
with a lock held.
:returns: A dict from the remote method.
:raises: openstack.common.rpc.common.Timeout if a complete response
is not received before the timeout is reached.
"""
return _get_impl().call(cfg.CONF, context, topic, msg, timeout)
if check_for_lock:
_check_for_lock()
return _get_impl().call(CONF, context, topic, msg, timeout)
def cast(context, topic, msg):
@ -124,7 +155,7 @@ def cast(context, topic, msg):
:returns: None
"""
return _get_impl().cast(cfg.CONF, context, topic, msg)
return _get_impl().cast(CONF, context, topic, msg)
def fanout_cast(context, topic, msg):
@ -145,10 +176,10 @@ def fanout_cast(context, topic, msg):
:returns: None
"""
return _get_impl().fanout_cast(cfg.CONF, context, topic, msg)
return _get_impl().fanout_cast(CONF, context, topic, msg)
def multicall(context, topic, msg, timeout=None):
def multicall(context, topic, msg, timeout=None, check_for_lock=False):
"""Invoke a remote method and get back an iterator.
In this case, the remote method will be returning multiple values in
@ -166,6 +197,8 @@ def multicall(context, topic, msg, timeout=None):
"args" : dict_of_kwargs }
:param timeout: int, number of seconds to use for a response timeout.
If set, this overrides the rpc_response_timeout option.
:param check_for_lock: if True, a warning is emitted if a RPC call is made
with a lock held.
:returns: An iterator. The iterator will yield a tuple (N, X) where N is
an index that starts at 0 and increases by one for each value
@ -175,20 +208,23 @@ def multicall(context, topic, msg, timeout=None):
:raises: openstack.common.rpc.common.Timeout if a complete response
is not received before the timeout is reached.
"""
return _get_impl().multicall(cfg.CONF, context, topic, msg, timeout)
if check_for_lock:
_check_for_lock()
return _get_impl().multicall(CONF, context, topic, msg, timeout)
def notify(context, topic, msg):
def notify(context, topic, msg, envelope=False):
"""Send notification event.
:param context: Information that identifies the user that has made this
request.
:param topic: The topic to send the notification to.
:param msg: This is a dict of content of event.
:param envelope: Set to True to enable message envelope for notifications.
:returns: None
"""
return _get_impl().notify(cfg.CONF, context, topic, msg)
return _get_impl().notify(cfg.CONF, context, topic, msg, envelope)
def cleanup():
@ -216,7 +252,7 @@ def cast_to_server(context, server_params, topic, msg):
:returns: None
"""
return _get_impl().cast_to_server(cfg.CONF, context, server_params, topic,
return _get_impl().cast_to_server(CONF, context, server_params, topic,
msg)
@ -232,7 +268,7 @@ def fanout_cast_to_server(context, server_params, topic, msg):
:returns: None
"""
return _get_impl().fanout_cast_to_server(cfg.CONF, context, server_params,
return _get_impl().fanout_cast_to_server(CONF, context, server_params,
topic, msg)
@ -262,10 +298,10 @@ def _get_impl():
global _RPCIMPL
if _RPCIMPL is None:
try:
_RPCIMPL = importutils.import_module(cfg.CONF.rpc_backend)
_RPCIMPL = importutils.import_module(CONF.rpc_backend)
except ImportError:
# For backwards compatibility with older nova config.
impl = cfg.CONF.rpc_backend.replace('nova.rpc',
'nova.openstack.common.rpc')
impl = CONF.rpc_backend.replace('nova.rpc',
'nova.openstack.common.rpc')
_RPCIMPL = importutils.import_module(impl)
return _RPCIMPL

305
reddwarf/openstack/common/rpc/amqp.py
View File

@ -25,15 +25,20 @@ Specifically, this includes impl_kombu and impl_qpid. impl_carrot also uses
AMQP, but is deprecated and predates this code.
"""
import collections
import inspect
import sys
import uuid
from eventlet import greenpool
from eventlet import pools
from eventlet import queue
from eventlet import semaphore
# TODO(pekowsk): Remove import cfg and below comment in Havana.
# This import should no longer be needed when the amqp_rpc_single_reply_queue
# option is removed.
from oslo.config import cfg
from reddwarf.openstack.common import cfg
from reddwarf.openstack.common import excutils
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import local
@ -41,6 +46,17 @@ from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common.rpc import common as rpc_common
# TODO(pekowski): Remove this option in Havana.
amqp_opts = [
cfg.BoolOpt('amqp_rpc_single_reply_queue',
default=False,
help='Enable a fast single reply queue if using AMQP based '
'RPC like RabbitMQ or Qpid.'),
]
cfg.CONF.register_opts(amqp_opts)
UNIQUE_ID = '_unique_id'
LOG = logging.getLogger(__name__)
@ -52,6 +68,7 @@ class Pool(pools.Pool):
kwargs.setdefault("max_size", self.conf.rpc_conn_pool_size)
kwargs.setdefault("order_as_stack", True)
super(Pool, self).__init__(*args, **kwargs)
self.reply_proxy = None
# TODO(comstud): Timeout connections not used in a while
def create(self):
@ -61,6 +78,16 @@ class Pool(pools.Pool):
def empty(self):
while self.free_items:
self.get().close()
# Force a new connection pool to be created.
# Note that this was added due to failing unit test cases. The issue
# is the above "while loop" gets all the cached connections from the
# pool and closes them, but never returns them to the pool, a pool
# leak. The unit tests hang waiting for an item to be returned to the
# pool. The unit tests get here via the teatDown() method. In the run
# time code, it gets here via cleanup() and only appears in service.py
# just before doing a sys.exit(), so cleanup() only happens once and
# the leakage is not a problem.
self.connection_cls.pool = None
_pool_create_sem = semaphore.Semaphore()
@ -138,6 +165,12 @@ class ConnectionContext(rpc_common.Connection):
def create_worker(self, topic, proxy, pool_name):
self.connection.create_worker(topic, proxy, pool_name)
def join_consumer_pool(self, callback, pool_name, topic, exchange_name):
self.connection.join_consumer_pool(callback,
pool_name,
topic,
exchange_name)
def consume_in_thread(self):
self.connection.consume_in_thread()
@ -149,8 +182,45 @@ class ConnectionContext(rpc_common.Connection):
raise rpc_common.InvalidRPCConnectionReuse()
def msg_reply(conf, msg_id, connection_pool, reply=None, failure=None,
ending=False, log_failure=True):
class ReplyProxy(ConnectionContext):
""" Connection class for RPC replies / callbacks """
def __init__(self, conf, connection_pool):
self._call_waiters = {}
self._num_call_waiters = 0
self._num_call_waiters_wrn_threshhold = 10
self._reply_q = 'reply_' + uuid.uuid4().hex
super(ReplyProxy, self).__init__(conf, connection_pool, pooled=False)
self.declare_direct_consumer(self._reply_q, self._process_data)
self.consume_in_thread()
def _process_data(self, message_data):
msg_id = message_data.pop('_msg_id', None)
waiter = self._call_waiters.get(msg_id)
if not waiter:
LOG.warn(_('no calling threads waiting for msg_id : %s'
', message : %s') % (msg_id, message_data))
else:
waiter.put(message_data)
def add_call_waiter(self, waiter, msg_id):
self._num_call_waiters += 1
if self._num_call_waiters > self._num_call_waiters_wrn_threshhold:
LOG.warn(_('Number of call waiters is greater than warning '
'threshhold: %d. There could be a MulticallProxyWaiter '
'leak.') % self._num_call_waiters_wrn_threshhold)
self._num_call_waiters_wrn_threshhold *= 2
self._call_waiters[msg_id] = waiter
def del_call_waiter(self, msg_id):
self._num_call_waiters -= 1
del self._call_waiters[msg_id]
def get_reply_q(self):
return self._reply_q
def msg_reply(conf, msg_id, reply_q, connection_pool, reply=None,
failure=None, ending=False, log_failure=True):
"""Sends a reply or an error on the channel signified by msg_id.
Failure should be a sys.exc_info() tuple.
@ -169,13 +239,22 @@ def msg_reply(conf, msg_id, connection_pool, reply=None, failure=None,
'failure': failure}
if ending:
msg['ending'] = True
conn.direct_send(msg_id, msg)
_add_unique_id(msg)
# If a reply_q exists, add the msg_id to the reply and pass the
# reply_q to direct_send() to use it as the response queue.
# Otherwise use the msg_id for backward compatibilty.
if reply_q:
msg['_msg_id'] = msg_id
conn.direct_send(reply_q, rpc_common.serialize_msg(msg))
else:
conn.direct_send(msg_id, rpc_common.serialize_msg(msg))
class RpcContext(rpc_common.CommonRpcContext):
"""Context that supports replying to a rpc.call"""
def __init__(self, **kwargs):
self.msg_id = kwargs.pop('msg_id', None)
self.reply_q = kwargs.pop('reply_q', None)
self.conf = kwargs.pop('conf')
super(RpcContext, self).__init__(**kwargs)
@ -183,13 +262,14 @@ class RpcContext(rpc_common.CommonRpcContext):
values = self.to_dict()
values['conf'] = self.conf
values['msg_id'] = self.msg_id
values['reply_q'] = self.reply_q
return self.__class__(**values)
def reply(self, reply=None, failure=None, ending=False,
connection_pool=None, log_failure=True):
if self.msg_id:
msg_reply(self.conf, self.msg_id, connection_pool, reply, failure,
ending, log_failure)
msg_reply(self.conf, self.msg_id, self.reply_q, connection_pool,
reply, failure, ending, log_failure)
if ending:
self.msg_id = None
@ -205,6 +285,7 @@ def unpack_context(conf, msg):
value = msg.pop(key)
context_dict[key[9:]] = value
context_dict['msg_id'] = msg.pop('_msg_id', None)
context_dict['reply_q'] = msg.pop('_reply_q', None)
context_dict['conf'] = conf
ctx = RpcContext.from_dict(context_dict)
rpc_common._safe_log(LOG.debug, _('unpacked context: %s'), ctx.to_dict())
@ -225,15 +306,86 @@ def pack_context(msg, context):
msg.update(context_d)
class ProxyCallback(object):
"""Calls methods on a proxy object based on method and args."""
class _MsgIdCache(object):
"""This class checks any duplicate messages."""
def __init__(self, conf, proxy, connection_pool):
self.proxy = proxy
# NOTE: This value is considered can be a configuration item, but
# it is not necessary to change its value in most cases,
# so let this value as static for now.
DUP_MSG_CHECK_SIZE = 16
def __init__(self, **kwargs):
self.prev_msgids = collections.deque([],
maxlen=self.DUP_MSG_CHECK_SIZE)
def check_duplicate_message(self, message_data):
"""AMQP consumers may read same message twice when exceptions occur
before ack is returned. This method prevents doing it.
"""
if UNIQUE_ID in message_data:
msg_id = message_data[UNIQUE_ID]
if msg_id not in self.prev_msgids:
self.prev_msgids.append(msg_id)
else:
raise rpc_common.DuplicateMessageError(msg_id=msg_id)
def _add_unique_id(msg):
"""Add unique_id for checking duplicate messages."""
unique_id = uuid.uuid4().hex
msg.update({UNIQUE_ID: unique_id})
LOG.debug(_('UNIQUE_ID is %s.') % (unique_id))
class _ThreadPoolWithWait(object):
"""Base class for a delayed invocation manager used by
the Connection class to start up green threads
to handle incoming messages.
"""
def __init__(self, conf, connection_pool):
self.pool = greenpool.GreenPool(conf.rpc_thread_pool_size)
self.connection_pool = connection_pool
self.conf = conf
def wait(self):
"""Wait for all callback threads to exit."""
self.pool.waitall()
class CallbackWrapper(_ThreadPoolWithWait):
"""Wraps a straight callback to allow it to be invoked in a green
thread.
"""
def __init__(self, conf, callback, connection_pool):
"""
:param conf: cfg.CONF instance
:param callback: a callable (probably a function)
:param connection_pool: connection pool as returned by
get_connection_pool()
"""
super(CallbackWrapper, self).__init__(
conf=conf,
connection_pool=connection_pool,
)
self.callback = callback
def __call__(self, message_data):
self.pool.spawn_n(self.callback, message_data)
class ProxyCallback(_ThreadPoolWithWait):
"""Calls methods on a proxy object based on method and args."""
def __init__(self, conf, proxy, connection_pool):
super(ProxyCallback, self).__init__(
conf=conf,
connection_pool=connection_pool,
)
self.proxy = proxy
self.msg_id_cache = _MsgIdCache()
def __call__(self, message_data):
"""Consumer callback to call a method on a proxy object.
@ -252,18 +404,21 @@ class ProxyCallback(object):
if hasattr(local.store, 'context'):
del local.store.context
rpc_common._safe_log(LOG.debug, _('received %s'), message_data)
self.msg_id_cache.check_duplicate_message(message_data)
ctxt = unpack_context(self.conf, message_data)
method = message_data.get('method')
args = message_data.get('args', {})
version = message_data.get('version', None)
version = message_data.get('version')
namespace = message_data.get('namespace')
if not method:
LOG.warn(_('no method for message: %s') % message_data)
ctxt.reply(_('No method for message: %s') % message_data,
connection_pool=self.connection_pool)
return
self.pool.spawn_n(self._process_data, ctxt, version, method, args)
self.pool.spawn_n(self._process_data, ctxt, version, method,
namespace, args)
def _process_data(self, ctxt, version, method, args):
def _process_data(self, ctxt, version, method, namespace, args):
"""Process a message in a new thread.
If the proxy object we have has a dispatch method
@ -274,7 +429,8 @@ class ProxyCallback(object):
"""
ctxt.update_store()
try:
rval = self.proxy.dispatch(ctxt, version, method, **args)
rval = self.proxy.dispatch(ctxt, version, method, namespace,
**args)
# Check if the result was a generator
if inspect.isgenerator(rval):
for x in rval:
@ -290,11 +446,73 @@ class ProxyCallback(object):
connection_pool=self.connection_pool,
log_failure=False)
except Exception:
LOG.exception(_('Exception during message handling'))
ctxt.reply(None, sys.exc_info(),
connection_pool=self.connection_pool)
# sys.exc_info() is deleted by LOG.exception().
exc_info = sys.exc_info()
LOG.error(_('Exception during message handling'),
exc_info=exc_info)
ctxt.reply(None, exc_info, connection_pool=self.connection_pool)
class MulticallProxyWaiter(object):
def __init__(self, conf, msg_id, timeout, connection_pool):
self._msg_id = msg_id
self._timeout = timeout or conf.rpc_response_timeout
self._reply_proxy = connection_pool.reply_proxy
self._done = False
self._got_ending = False
self._conf = conf
self._dataqueue = queue.LightQueue()
# Add this caller to the reply proxy's call_waiters
self._reply_proxy.add_call_waiter(self, self._msg_id)
self.msg_id_cache = _MsgIdCache()
def put(self, data):
self._dataqueue.put(data)
def done(self):
if self._done:
return
self._done = True
# Remove this caller from reply proxy's call_waiters
self._reply_proxy.del_call_waiter(self._msg_id)
def _process_data(self, data):
result = None
self.msg_id_cache.check_duplicate_message(data)
if data['failure']:
failure = data['failure']
result = rpc_common.deserialize_remote_exception(self._conf,
failure)
elif data.get('ending', False):
self._got_ending = True
else:
result = data['result']
return result
def __iter__(self):
"""Return a result until we get a reply with an 'ending" flag"""
if self._done:
raise StopIteration
while True:
try:
data = self._dataqueue.get(timeout=self._timeout)
result = self._process_data(data)
except queue.Empty:
self.done()
raise rpc_common.Timeout()
except Exception:
with excutils.save_and_reraise_exception():
self.done()
if self._got_ending:
self.done()
raise StopIteration
if isinstance(result, Exception):
self.done()
raise result
yield result
#TODO(pekowski): Remove MulticallWaiter() in Havana.
class MulticallWaiter(object):
def __init__(self, conf, connection, timeout):
self._connection = connection
@ -304,6 +522,7 @@ class MulticallWaiter(object):
self._done = False
self._got_ending = False
self._conf = conf
self.msg_id_cache = _MsgIdCache()
def done(self):
if self._done:
@ -315,6 +534,7 @@ class MulticallWaiter(object):
def __call__(self, data):
"""The consume() callback will call this. Store the result."""
self.msg_id_cache.check_duplicate_message(data)
if data['failure']:
failure = data['failure']
self._result = rpc_common.deserialize_remote_exception(self._conf,
@ -350,22 +570,41 @@ def create_connection(conf, new, connection_pool):
return ConnectionContext(conf, connection_pool, pooled=not new)
_reply_proxy_create_sem = semaphore.Semaphore()
def multicall(conf, context, topic, msg, timeout, connection_pool):
"""Make a call that returns multiple times."""
# TODO(pekowski): Remove all these comments in Havana.
# For amqp_rpc_single_reply_queue = False,
# Can't use 'with' for multicall, as it returns an iterator
# that will continue to use the connection. When it's done,
# connection.close() will get called which will put it back into
# the pool
LOG.debug(_('Making asynchronous call on %s ...'), topic)
# For amqp_rpc_single_reply_queue = True,
# The 'with' statement is mandatory for closing the connection
LOG.debug(_('Making synchronous call on %s ...'), topic)
msg_id = uuid.uuid4().hex
msg.update({'_msg_id': msg_id})
LOG.debug(_('MSG_ID is %s') % (msg_id))
_add_unique_id(msg)
pack_context(msg, context)
conn = ConnectionContext(conf, connection_pool)
wait_msg = MulticallWaiter(conf, conn, timeout)
conn.declare_direct_consumer(msg_id, wait_msg)
conn.topic_send(topic, msg)
# TODO(pekowski): Remove this flag and the code under the if clause
# in Havana.
if not conf.amqp_rpc_single_reply_queue:
conn = ConnectionContext(conf, connection_pool)
wait_msg = MulticallWaiter(conf, conn, timeout)
conn.declare_direct_consumer(msg_id, wait_msg)
conn.topic_send(topic, rpc_common.serialize_msg(msg), timeout)
else:
with _reply_proxy_create_sem:
if not connection_pool.reply_proxy:
connection_pool.reply_proxy = ReplyProxy(conf, connection_pool)
msg.update({'_reply_q': connection_pool.reply_proxy.get_reply_q()})
wait_msg = MulticallProxyWaiter(conf, msg_id, timeout, connection_pool)
with ConnectionContext(conf, connection_pool) as conn:
conn.topic_send(topic, rpc_common.serialize_msg(msg), timeout)
return wait_msg
@ -382,43 +621,50 @@ def call(conf, context, topic, msg, timeout, connection_pool):
def cast(conf, context, topic, msg, connection_pool):
"""Sends a message on a topic without waiting for a response."""
LOG.debug(_('Making asynchronous cast on %s...'), topic)
_add_unique_id(msg)
pack_context(msg, context)
with ConnectionContext(conf, connection_pool) as conn:
conn.topic_send(topic, msg)
conn.topic_send(topic, rpc_common.serialize_msg(msg))
def fanout_cast(conf, context, topic, msg, connection_pool):
"""Sends a message on a fanout exchange without waiting for a response."""
LOG.debug(_('Making asynchronous fanout cast...'))
_add_unique_id(msg)
pack_context(msg, context)
with ConnectionContext(conf, connection_pool) as conn:
conn.fanout_send(topic, msg)
conn.fanout_send(topic, rpc_common.serialize_msg(msg))
def cast_to_server(conf, context, server_params, topic, msg, connection_pool):
"""Sends a message on a topic to a specific server."""
_add_unique_id(msg)
pack_context(msg, context)
with ConnectionContext(conf, connection_pool, pooled=False,
server_params=server_params) as conn:
conn.topic_send(topic, msg)
conn.topic_send(topic, rpc_common.serialize_msg(msg))
def fanout_cast_to_server(conf, context, server_params, topic, msg,
connection_pool):
"""Sends a message on a fanout exchange to a specific server."""
_add_unique_id(msg)
pack_context(msg, context)
with ConnectionContext(conf, connection_pool, pooled=False,
server_params=server_params) as conn:
conn.fanout_send(topic, msg)
conn.fanout_send(topic, rpc_common.serialize_msg(msg))
def notify(conf, context, topic, msg, connection_pool):
def notify(conf, context, topic, msg, connection_pool, envelope):
"""Sends a notification event on a topic."""
LOG.debug(_('Sending %(event_type)s on %(topic)s'),
dict(event_type=msg.get('event_type'),
topic=topic))
_add_unique_id(msg)
pack_context(msg, context)
with ConnectionContext(conf, connection_pool) as conn:
if envelope:
msg = rpc_common.serialize_msg(msg)
conn.notify_send(topic, msg)
@ -428,7 +674,4 @@ def cleanup(connection_pool):
def get_control_exchange(conf):
try:
return conf.control_exchange
except cfg.NoSuchOptError:
return 'openstack'
return conf.control_exchange

190
reddwarf/openstack/common/rpc/common.py
View File

@ -21,6 +21,8 @@ import copy
import sys
import traceback
from oslo.config import cfg
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import importutils
from reddwarf.openstack.common import jsonutils
@ -28,9 +30,46 @@ from reddwarf.openstack.common import local
from reddwarf.openstack.common import log as logging
CONF = cfg.CONF
LOG = logging.getLogger(__name__)
'''RPC Envelope Version.
This version number applies to the top level structure of messages sent out.
It does *not* apply to the message payload, which must be versioned
independently. For example, when using rpc APIs, a version number is applied
for changes to the API being exposed over rpc. This version number is handled
in the rpc proxy and dispatcher modules.
This version number applies to the message envelope that is used in the
serialization done inside the rpc layer. See serialize_msg() and
deserialize_msg().
The current message format (version 2.0) is very simple. It is:
{
'oslo.version': <RPC Envelope Version as a String>,
'oslo.message': <Application Message Payload, JSON encoded>
}
Message format version '1.0' is just considered to be the messages we sent
without a message envelope.
So, the current message envelope just includes the envelope version. It may
eventually contain additional information, such as a signature for the message
payload.
We will JSON encode the application message payload. The message envelope,
which includes the JSON encoded application message body, will be passed down
to the messaging libraries as a dict.
'''
_RPC_ENVELOPE_VERSION = '2.0'
_VERSION_KEY = 'oslo.version'
_MESSAGE_KEY = 'oslo.message'
class RPCException(Exception):
message = _("An unknown RPC related exception occurred.")
@ -79,7 +118,29 @@ class Timeout(RPCException):
This exception is raised if the rpc_response_timeout is reached while
waiting for a response from the remote side.
"""
message = _("Timeout while waiting on RPC response.")
message = _('Timeout while waiting on RPC response - '
'topic: "%(topic)s", RPC method: "%(method)s" '
'info: "%(info)s"')
def __init__(self, info=None, topic=None, method=None):
"""
:param info: Extra info to convey to the user
:param topic: The topic that the rpc call was sent to
:param rpc_method_name: The name of the rpc method being
called
"""
self.info = info
self.topic = topic
self.method = method
super(Timeout, self).__init__(
None,
info=info or _('<unknown>'),
topic=topic or _('<unknown>'),
method=method or _('<unknown>'))
class DuplicateMessageError(RPCException):
message = _("Found duplicate message(%(msg_id)s). Skipping it.")
class InvalidRPCConnectionReuse(RPCException):
@ -91,6 +152,11 @@ class UnsupportedRpcVersion(RPCException):
"this endpoint.")
class UnsupportedRpcEnvelopeVersion(RPCException):
message = _("Specified RPC envelope version, %(version)s, "
"not supported by this endpoint.")
class Connection(object):
"""A connection, returned by rpc.create_connection().
@ -149,6 +215,28 @@ class Connection(object):
"""
raise NotImplementedError()
def join_consumer_pool(self, callback, pool_name, topic, exchange_name):
"""Register as a member of a group of consumers for a given topic from
the specified exchange.
Exactly one member of a given pool will receive each message.
A message will be delivered to multiple pools, if more than
one is created.
:param callback: Callable to be invoked for each message.
:type callback: callable accepting one argument
:param pool_name: The name of the consumer pool.
:type pool_name: str
:param topic: The routing topic for desired messages.
:type topic: str
:param exchange_name: The name of the message exchange where
the client should attach. Defaults to
the configured exchange.
:type exchange_name: str
"""
raise NotImplementedError()
def consume_in_thread(self):
"""Spawn a thread to handle incoming messages.
@ -165,8 +253,12 @@ class Connection(object):
def _safe_log(log_func, msg, msg_data):
"""Sanitizes the msg_data field before logging."""
SANITIZE = {'set_admin_password': ('new_pass',),
'run_instance': ('admin_password',), }
SANITIZE = {'set_admin_password': [('args', 'new_pass')],
'run_instance': [('args', 'admin_password')],
'route_message': [('args', 'message', 'args', 'method_info',
'method_kwargs', 'password'),
('args', 'message', 'args', 'method_info',
'method_kwargs', 'admin_password')]}
has_method = 'method' in msg_data and msg_data['method'] in SANITIZE
has_context_token = '_context_auth_token' in msg_data
@ -178,14 +270,16 @@ def _safe_log(log_func, msg, msg_data):
msg_data = copy.deepcopy(msg_data)
if has_method:
method = msg_data['method']
if method in SANITIZE:
args_to_sanitize = SANITIZE[method]
for arg in args_to_sanitize:
try:
msg_data['args'][arg] = "<SANITIZED>"
except KeyError:
pass
for arg in SANITIZE.get(msg_data['method'], []):
try:
d = msg_data
for elem in arg[:-1]:
d = d[elem]
d[arg[-1]] = '<SANITIZED>'
except KeyError as e:
LOG.info(_('Failed to sanitize %(item)s. Key error %(err)s'),
{'item': arg,
'err': e})
if has_context_token:
msg_data['_context_auth_token'] = '<SANITIZED>'
@ -236,7 +330,7 @@ def deserialize_remote_exception(conf, data):
# NOTE(ameade): We DO NOT want to allow just any module to be imported, in
# order to prevent arbitrary code execution.
if not module in conf.allowed_rpc_exception_modules:
if module not in conf.allowed_rpc_exception_modules:
return RemoteError(name, failure.get('message'), trace)
try:
@ -245,7 +339,7 @@ def deserialize_remote_exception(conf, data):
if not issubclass(klass, Exception):
raise TypeError("Can only deserialize Exceptions")
failure = klass(**failure.get('kwargs', {}))
failure = klass(*failure.get('args', []), **failure.get('kwargs', {}))
except (AttributeError, TypeError, ImportError):
return RemoteError(name, failure.get('message'), trace)
@ -325,7 +419,7 @@ class ClientException(Exception):
def catch_client_exception(exceptions, func, *args, **kwargs):
try:
return func(*args, **kwargs)
except Exception, e:
except Exception as e:
if type(e) in exceptions:
raise ClientException()
else:
@ -344,3 +438,71 @@ def client_exceptions(*exceptions):
return catch_client_exception(exceptions, func, *args, **kwargs)
return inner
return outer
def version_is_compatible(imp_version, version):
"""Determine whether versions are compatible.
:param imp_version: The version implemented
:param version: The version requested by an incoming message.
"""
version_parts = version.split('.')
imp_version_parts = imp_version.split('.')
if int(version_parts[0]) != int(imp_version_parts[0]): # Major
return False
if int(version_parts[1]) > int(imp_version_parts[1]): # Minor
return False
return True
def serialize_msg(raw_msg):
# NOTE(russellb) See the docstring for _RPC_ENVELOPE_VERSION for more
# information about this format.
msg = {_VERSION_KEY: _RPC_ENVELOPE_VERSION,
_MESSAGE_KEY: jsonutils.dumps(raw_msg)}
return msg
def deserialize_msg(msg):
# NOTE(russellb): Hang on to your hats, this road is about to
# get a little bumpy.
#
# Robustness Principle:
# "Be strict in what you send, liberal in what you accept."
#
# At this point we have to do a bit of guessing about what it
# is we just received. Here is the set of possibilities:
#
# 1) We received a dict. This could be 2 things:
#
# a) Inspect it to see if it looks like a standard message envelope.
# If so, great!
#
# b) If it doesn't look like a standard message envelope, it could either
# be a notification, or a message from before we added a message
# envelope (referred to as version 1.0).
# Just return the message as-is.
#
# 2) It's any other non-dict type. Just return it and hope for the best.
# This case covers return values from rpc.call() from before message
# envelopes were used. (messages to call a method were always a dict)
if not isinstance(msg, dict):
# See #2 above.
return msg
base_envelope_keys = (_VERSION_KEY, _MESSAGE_KEY)
if not all(map(lambda key: key in msg, base_envelope_keys)):
# See #1.b above.
return msg
# At this point we think we have the message envelope
# format we were expecting. (#1.a above)
if not version_is_compatible(_RPC_ENVELOPE_VERSION, msg[_VERSION_KEY]):
raise UnsupportedRpcEnvelopeVersion(version=msg[_VERSION_KEY])
raw_msg = jsonutils.loads(msg[_MESSAGE_KEY])
return raw_msg

39
reddwarf/openstack/common/rpc/dispatcher.py
View File

@ -103,28 +103,16 @@ class RpcDispatcher(object):
self.callbacks = callbacks
super(RpcDispatcher, self).__init__()
@staticmethod
def _is_compatible(mversion, version):
"""Determine whether versions are compatible.
:param mversion: The API version implemented by a callback.
:param version: The API version requested by an incoming message.
"""
version_parts = version.split('.')
mversion_parts = mversion.split('.')
if int(version_parts[0]) != int(mversion_parts[0]): # Major
return False
if int(version_parts[1]) > int(mversion_parts[1]): # Minor
return False
return True
def dispatch(self, ctxt, version, method, **kwargs):
def dispatch(self, ctxt, version, method, namespace, **kwargs):
"""Dispatch a message based on a requested version.
:param ctxt: The request context
:param version: The requested API version from the incoming message
:param method: The method requested to be called by the incoming
message.
:param namespace: The namespace for the requested method. If None,
the dispatcher will look for a method on a callback
object with no namespace set.
:param kwargs: A dict of keyword arguments to be passed to the method.
:returns: Whatever is returned by the underlying method that gets
@ -135,12 +123,25 @@ class RpcDispatcher(object):
had_compatible = False
for proxyobj in self.callbacks:
if hasattr(proxyobj, 'RPC_API_VERSION'):
# Check for namespace compatibility
try:
cb_namespace = proxyobj.RPC_API_NAMESPACE
except AttributeError:
cb_namespace = None
if namespace != cb_namespace:
continue
# Check for version compatibility
try:
rpc_api_version = proxyobj.RPC_API_VERSION
else:
except AttributeError:
rpc_api_version = '1.0'
is_compatible = self._is_compatible(rpc_api_version, version)
is_compatible = rpc_common.version_is_compatible(rpc_api_version,
version)
had_compatible = had_compatible or is_compatible
if not hasattr(proxyobj, method):
continue
if is_compatible:

14
reddwarf/openstack/common/rpc/impl_fake.py
View File

@ -57,13 +57,14 @@ class Consumer(object):
self.topic = topic
self.proxy = proxy
def call(self, context, version, method, args, timeout):
def call(self, context, version, method, namespace, args, timeout):
done = eventlet.event.Event()
def _inner():
ctxt = RpcContext.from_dict(context.to_dict())
try:
rval = self.proxy.dispatch(context, version, method, **args)
rval = self.proxy.dispatch(context, version, method,
namespace, **args)
res = []
# Caller might have called ctxt.reply() manually
for (reply, failure) in ctxt._response:
@ -140,13 +141,15 @@ def multicall(conf, context, topic, msg, timeout=None):
return
args = msg.get('args', {})
version = msg.get('version', None)
namespace = msg.get('namespace', None)
try:
consumer = CONSUMERS[topic][0]
except (KeyError, IndexError):
return iter([None])
else:
return consumer.call(context, version, method, args, timeout)
return consumer.call(context, version, method, namespace, args,
timeout)
def call(conf, context, topic, msg, timeout=None):
@ -167,7 +170,7 @@ def cast(conf, context, topic, msg):
pass
def notify(conf, context, topic, msg):
def notify(conf, context, topic, msg, envelope):
check_serialize(msg)
@ -183,9 +186,10 @@ def fanout_cast(conf, context, topic, msg):
return
args = msg.get('args', {})
version = msg.get('version', None)
namespace = msg.get('namespace', None)
for consumer in CONSUMERS.get(topic, []):
try:
consumer.call(context, version, method, args, None)
consumer.call(context, version, method, namespace, args, None)
except Exception:
pass

93
reddwarf/openstack/common/rpc/impl_kombu.py
View File

@ -28,8 +28,8 @@ import kombu
import kombu.connection
import kombu.entity
import kombu.messaging
from oslo.config import cfg
from reddwarf.openstack.common import cfg
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import network_utils
from reddwarf.openstack.common.rpc import amqp as rpc_amqp
@ -66,7 +66,8 @@ kombu_opts = [
help='the RabbitMQ userid'),
cfg.StrOpt('rabbit_password',
default='guest',
help='the RabbitMQ password'),
help='the RabbitMQ password',
secret=True),
cfg.StrOpt('rabbit_virtual_host',
default='/',
help='the RabbitMQ virtual host'),
@ -162,10 +163,12 @@ class ConsumerBase(object):
def _callback(raw_message):
message = self.channel.message_to_python(raw_message)
try:
callback(message.payload)
message.ack()
msg = rpc_common.deserialize_msg(message.payload)
callback(msg)
except Exception:
LOG.exception(_("Failed to process message... skipping it."))
finally:
message.ack()
self.queue.consume(*args, callback=_callback, **options)
@ -173,7 +176,7 @@ class ConsumerBase(object):
"""Cancel the consuming from the queue, if it has started"""
try:
self.queue.cancel(self.tag)
except KeyError, e:
except KeyError as e:
# NOTE(comstud): Kludge to get around a amqplib bug
if str(e) != "u'%s'" % self.tag:
raise
@ -195,8 +198,9 @@ class DirectConsumer(ConsumerBase):
"""
# Default options
options = {'durable': False,
'queue_arguments': _get_queue_arguments(conf),
'auto_delete': True,
'exclusive': True}
'exclusive': False}
options.update(kwargs)
exchange = kombu.entity.Exchange(name=msg_id,
type='direct',
@ -269,7 +273,7 @@ class FanoutConsumer(ConsumerBase):
options = {'durable': False,
'queue_arguments': _get_queue_arguments(conf),
'auto_delete': True,
'exclusive': True}
'exclusive': False}
options.update(kwargs)
exchange = kombu.entity.Exchange(name=exchange_name, type='fanout',
durable=options['durable'],
@ -301,9 +305,15 @@ class Publisher(object):
channel=channel,
routing_key=self.routing_key)
def send(self, msg):
def send(self, msg, timeout=None):
"""Send a message"""
self.producer.publish(msg)
if timeout:
#
# AMQP TTL is in milliseconds when set in the header.
#
self.producer.publish(msg, headers={'ttl': (timeout * 1000)})
else:
self.producer.publish(msg)
class DirectPublisher(Publisher):
@ -316,7 +326,7 @@ class DirectPublisher(Publisher):
options = {'durable': False,
'auto_delete': True,
'exclusive': True}
'exclusive': False}
options.update(kwargs)
super(DirectPublisher, self).__init__(channel, msg_id, msg_id,
type='direct', **options)
@ -350,7 +360,7 @@ class FanoutPublisher(Publisher):
"""
options = {'durable': False,
'auto_delete': True,
'exclusive': True}
'exclusive': False}
options.update(kwargs)
super(FanoutPublisher, self).__init__(channel, '%s_fanout' % topic,
None, type='fanout', **options)
@ -387,6 +397,7 @@ class Connection(object):
def __init__(self, conf, server_params=None):
self.consumers = []
self.consumer_thread = None
self.proxy_callbacks = []
self.conf = conf
self.max_retries = self.conf.rabbit_max_retries
# Try forever?
@ -469,7 +480,7 @@ class Connection(object):
LOG.info(_("Reconnecting to AMQP server on "
"%(hostname)s:%(port)d") % params)
try:
self.connection.close()
self.connection.release()
except self.connection_errors:
pass
# Setting this in case the next statement fails, though
@ -509,7 +520,7 @@ class Connection(object):
return
except (IOError, self.connection_errors) as e:
pass
except Exception, e:
except Exception as e:
# NOTE(comstud): Unfortunately it's possible for amqplib
# to return an error not covered by its transport
# connection_errors in the case of a timeout waiting for
@ -550,10 +561,10 @@ class Connection(object):
while True:
try:
return method(*args, **kwargs)
except (self.connection_errors, socket.timeout, IOError), e:
except (self.connection_errors, socket.timeout, IOError) as e:
if error_callback:
error_callback(e)
except Exception, e:
except Exception as e:
# NOTE(comstud): Unfortunately it's possible for amqplib
# to return an error not covered by its transport
# connection_errors in the case of a timeout waiting for
@ -573,12 +584,14 @@ class Connection(object):
def close(self):
"""Close/release this connection"""
self.cancel_consumer_thread()
self.wait_on_proxy_callbacks()
self.connection.release()
self.connection = None
def reset(self):
"""Reset a connection so it can be used again"""
self.cancel_consumer_thread()
self.wait_on_proxy_callbacks()
self.channel.close()
self.channel = self.connection.channel()
# work around 'memory' transport bug in 1.1.3
@ -611,8 +624,8 @@ class Connection(object):
def _error_callback(exc):
if isinstance(exc, socket.timeout):
LOG.exception(_('Timed out waiting for RPC response: %s') %
str(exc))
LOG.debug(_('Timed out waiting for RPC response: %s') %
str(exc))
raise rpc_common.Timeout()
else:
LOG.exception(_('Failed to consume message from queue: %s') %
@ -644,7 +657,12 @@ class Connection(object):
pass
self.consumer_thread = None
def publisher_send(self, cls, topic, msg, **kwargs):
def wait_on_proxy_callbacks(self):
"""Wait for all proxy callback threads to exit."""
for proxy_cb in self.proxy_callbacks:
proxy_cb.wait()
def publisher_send(self, cls, topic, msg, timeout=None, **kwargs):
"""Send to a publisher based on the publisher class"""
def _error_callback(exc):
@ -654,7 +672,7 @@ class Connection(object):
def _publish():
publisher = cls(self.conf, self.channel, topic, **kwargs)
publisher.send(msg)
publisher.send(msg, timeout)
self.ensure(_error_callback, _publish)
@ -682,9 +700,9 @@ class Connection(object):
"""Send a 'direct' message"""
self.publisher_send(DirectPublisher, msg_id, msg)
def topic_send(self, topic, msg):
def topic_send(self, topic, msg, timeout=None):
"""Send a 'topic' message"""
self.publisher_send(TopicPublisher, topic, msg)
self.publisher_send(TopicPublisher, topic, msg, timeout)
def fanout_send(self, topic, msg):
"""Send a 'fanout' message"""
@ -692,7 +710,7 @@ class Connection(object):
def notify_send(self, topic, msg, **kwargs):
"""Send a notify message on a topic"""
self.publisher_send(NotifyPublisher, topic, msg, **kwargs)
self.publisher_send(NotifyPublisher, topic, msg, None, **kwargs)
def consume(self, limit=None):
"""Consume from all queues/consumers"""
@ -719,6 +737,7 @@ class Connection(object):
proxy_cb = rpc_amqp.ProxyCallback(
self.conf, proxy,
rpc_amqp.get_connection_pool(self.conf, Connection))
self.proxy_callbacks.append(proxy_cb)
if fanout:
self.declare_fanout_consumer(topic, proxy_cb)
@ -730,8 +749,33 @@ class Connection(object):
proxy_cb = rpc_amqp.ProxyCallback(
self.conf, proxy,
rpc_amqp.get_connection_pool(self.conf, Connection))
self.proxy_callbacks.append(proxy_cb)
self.declare_topic_consumer(topic, proxy_cb, pool_name)
def join_consumer_pool(self, callback, pool_name, topic,
exchange_name=None):
"""Register as a member of a group of consumers for a given topic from
the specified exchange.
Exactly one member of a given pool will receive each message.
A message will be delivered to multiple pools, if more than
one is created.
"""
callback_wrapper = rpc_amqp.CallbackWrapper(
conf=self.conf,
callback=callback,
connection_pool=rpc_amqp.get_connection_pool(self.conf,
Connection),
)
self.proxy_callbacks.append(callback_wrapper)
self.declare_topic_consumer(
queue_name=pool_name,
topic=topic,
exchange_name=exchange_name,
callback=callback_wrapper,
)
def create_connection(conf, new=True):
"""Create a connection"""
@ -782,11 +826,12 @@ def fanout_cast_to_server(conf, context, server_params, topic, msg):
rpc_amqp.get_connection_pool(conf, Connection))
def notify(conf, context, topic, msg):
def notify(conf, context, topic, msg, envelope):
"""Sends a notification event on a topic."""
return rpc_amqp.notify(
conf, context, topic, msg,
rpc_amqp.get_connection_pool(conf, Connection))
rpc_amqp.get_connection_pool(conf, Connection),
envelope)
def cleanup():

97
reddwarf/openstack/common/rpc/impl_qpid.py
View File

@ -22,24 +22,26 @@ import uuid
import eventlet
import greenlet
import qpid.messaging
import qpid.messaging.exceptions
from oslo.config import cfg
from reddwarf.openstack.common import cfg
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import importutils
from reddwarf.openstack.common import jsonutils
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common.rpc import amqp as rpc_amqp
from reddwarf.openstack.common.rpc import common as rpc_common
qpid_messaging = importutils.try_import("qpid.messaging")
qpid_exceptions = importutils.try_import("qpid.messaging.exceptions")
LOG = logging.getLogger(__name__)
qpid_opts = [
cfg.StrOpt('qpid_hostname',
default='localhost',
help='Qpid broker hostname'),
cfg.StrOpt('qpid_port',
default='5672',
cfg.IntOpt('qpid_port',
default=5672,
help='Qpid broker port'),
cfg.ListOpt('qpid_hosts',
default=['$qpid_hostname:$qpid_port'],
@ -49,7 +51,8 @@ qpid_opts = [
help='Username for qpid connection'),
cfg.StrOpt('qpid_password',
default='',
help='Password for qpid connection'),
help='Password for qpid connection',
secret=True),
cfg.StrOpt('qpid_sasl_mechanisms',
default='',
help='Space separated list of SASL mechanisms to use for auth'),
@ -124,7 +127,8 @@ class ConsumerBase(object):
"""Fetch the message and pass it to the callback object"""
message = self.receiver.fetch()
try:
self.callback(message.content)
msg = rpc_common.deserialize_msg(message.content)
self.callback(msg)
except Exception:
LOG.exception(_("Failed to process message... skipping it."))
finally:
@ -274,9 +278,13 @@ class Connection(object):
pool = None
def __init__(self, conf, server_params=None):
if not qpid_messaging:
raise ImportError("Failed to import qpid.messaging")
self.session = None
self.consumers = {}
self.consumer_thread = None
self.proxy_callbacks = []
self.conf = conf
if server_params and 'hostname' in server_params:
@ -301,7 +309,7 @@ class Connection(object):
def connection_create(self, broker):
# Create the connection - this does not open the connection
self.connection = qpid.messaging.Connection(broker)
self.connection = qpid_messaging.Connection(broker)
# Check if flags are set and if so set them for the connection
# before we call open
@ -312,7 +320,7 @@ class Connection(object):
# Reconnection is done by self.reconnect()
self.connection.reconnect = False
self.connection.heartbeat = self.conf.qpid_heartbeat
self.connection.protocol = self.conf.qpid_protocol
self.connection.transport = self.conf.qpid_protocol
self.connection.tcp_nodelay = self.conf.qpid_tcp_nodelay
def _register_consumer(self, consumer):
@ -326,7 +334,7 @@ class Connection(object):
if self.connection.opened():
try:
self.connection.close()
except qpid.messaging.exceptions.ConnectionError:
except qpid_exceptions.ConnectionError:
pass
attempt = 0
@ -338,7 +346,7 @@ class Connection(object):
try:
self.connection_create(broker)
self.connection.open()
except qpid.messaging.exceptions.ConnectionError, e:
except qpid_exceptions.ConnectionError as e:
msg_dict = dict(e=e, delay=delay)
msg = _("Unable to connect to AMQP server: %(e)s. "
"Sleeping %(delay)s seconds") % msg_dict
@ -365,8 +373,8 @@ class Connection(object):
while True:
try:
return method(*args, **kwargs)
except (qpid.messaging.exceptions.Empty,
qpid.messaging.exceptions.ConnectionError), e:
except (qpid_exceptions.Empty,
qpid_exceptions.ConnectionError), e:
if error_callback:
error_callback(e)
self.reconnect()
@ -374,12 +382,14 @@ class Connection(object):
def close(self):
"""Close/release this connection"""
self.cancel_consumer_thread()
self.wait_on_proxy_callbacks()
self.connection.close()
self.connection = None
def reset(self):
"""Reset a connection so it can be used again"""
self.cancel_consumer_thread()
self.wait_on_proxy_callbacks()
self.session.close()
self.session = self.connection.session()
self.consumers = {}
@ -404,9 +414,9 @@ class Connection(object):
"""Return an iterator that will consume from all queues/consumers"""
def _error_callback(exc):
if isinstance(exc, qpid.messaging.exceptions.Empty):
LOG.exception(_('Timed out waiting for RPC response: %s') %
str(exc))
if isinstance(exc, qpid_exceptions.Empty):
LOG.debug(_('Timed out waiting for RPC response: %s') %
str(exc))
raise rpc_common.Timeout()
else:
LOG.exception(_('Failed to consume message from queue: %s') %
@ -434,6 +444,11 @@ class Connection(object):
pass
self.consumer_thread = None
def wait_on_proxy_callbacks(self):
"""Wait for all proxy callback threads to exit."""
for proxy_cb in self.proxy_callbacks:
proxy_cb.wait()
def publisher_send(self, cls, topic, msg):
"""Send to a publisher based on the publisher class"""
@ -472,9 +487,20 @@ class Connection(object):
"""Send a 'direct' message"""
self.publisher_send(DirectPublisher, msg_id, msg)
def topic_send(self, topic, msg):
def topic_send(self, topic, msg, timeout=None):
"""Send a 'topic' message"""
self.publisher_send(TopicPublisher, topic, msg)
#
# We want to create a message with attributes, e.g. a TTL. We
# don't really need to keep 'msg' in its JSON format any longer
# so let's create an actual qpid message here and get some
# value-add on the go.
#
# WARNING: Request timeout happens to be in the same units as
# qpid's TTL (seconds). If this changes in the future, then this
# will need to be altered accordingly.
#
qpid_message = qpid_messaging.Message(content=msg, ttl=timeout)
self.publisher_send(TopicPublisher, topic, qpid_message)
def fanout_send(self, topic, msg):
"""Send a 'fanout' message"""
@ -509,6 +535,7 @@ class Connection(object):
proxy_cb = rpc_amqp.ProxyCallback(
self.conf, proxy,
rpc_amqp.get_connection_pool(self.conf, Connection))
self.proxy_callbacks.append(proxy_cb)
if fanout:
consumer = FanoutConsumer(self.conf, self.session, topic, proxy_cb)
@ -524,6 +551,7 @@ class Connection(object):
proxy_cb = rpc_amqp.ProxyCallback(
self.conf, proxy,
rpc_amqp.get_connection_pool(self.conf, Connection))
self.proxy_callbacks.append(proxy_cb)
consumer = TopicConsumer(self.conf, self.session, topic, proxy_cb,
name=pool_name)
@ -532,6 +560,34 @@ class Connection(object):
return consumer
def join_consumer_pool(self, callback, pool_name, topic,
exchange_name=None):
"""Register as a member of a group of consumers for a given topic from
the specified exchange.
Exactly one member of a given pool will receive each message.
A message will be delivered to multiple pools, if more than
one is created.
"""
callback_wrapper = rpc_amqp.CallbackWrapper(
conf=self.conf,
callback=callback,
connection_pool=rpc_amqp.get_connection_pool(self.conf,
Connection),
)
self.proxy_callbacks.append(callback_wrapper)
consumer = TopicConsumer(conf=self.conf,
session=self.session,
topic=topic,
callback=callback_wrapper,
name=pool_name,
exchange_name=exchange_name)
self._register_consumer(consumer)
return consumer
def create_connection(conf, new=True):
"""Create a connection"""
@ -582,10 +638,11 @@ def fanout_cast_to_server(conf, context, server_params, topic, msg):
rpc_amqp.get_connection_pool(conf, Connection))
def notify(conf, context, topic, msg):
def notify(conf, context, topic, msg, envelope):
"""Sends a notification event on a topic."""
return rpc_amqp.notify(conf, context, topic, msg,
rpc_amqp.get_connection_pool(conf, Connection))
rpc_amqp.get_connection_pool(conf, Connection),
envelope)
def cleanup():

380
reddwarf/openstack/common/rpc/impl_zmq.py
View File

@ -14,23 +14,26 @@
# License for the specific language governing permissions and limitations
# under the License.
import os
import pprint
import re
import socket
import string
import sys
import types
import uuid
import eventlet
from eventlet.green import zmq
import greenlet
from oslo.config import cfg
from reddwarf.openstack.common import cfg
from reddwarf.openstack.common import excutils
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import importutils
from reddwarf.openstack.common import jsonutils
from reddwarf.openstack.common import processutils as utils
from reddwarf.openstack.common.rpc import common as rpc_common
zmq = importutils.try_import('eventlet.green.zmq')
# for convenience, are not modified.
pformat = pprint.pformat
@ -61,6 +64,10 @@ zmq_opts = [
cfg.IntOpt('rpc_zmq_contexts', default=1,
help='Number of ZeroMQ contexts, defaults to 1'),
cfg.IntOpt('rpc_zmq_topic_backlog', default=None,
help='Maximum number of ingress messages to locally buffer '
'per topic. Default is unlimited.'),
cfg.StrOpt('rpc_zmq_ipc_dir', default='/var/run/openstack',
help='Directory for holding IPC sockets'),
@ -70,9 +77,9 @@ zmq_opts = [
]
# These globals are defined in register_opts(conf),
# a mandatory initialization call
CONF = None
CONF = cfg.CONF
CONF.register_opts(zmq_opts)
ZMQ_CTX = None # ZeroMQ Context, must be global.
matchmaker = None # memoized matchmaker object
@ -84,10 +91,10 @@ def _serialize(data):
Error if a developer passes us bad data.
"""
try:
return str(jsonutils.dumps(data, ensure_ascii=True))
return jsonutils.dumps(data, ensure_ascii=True)
except TypeError:
LOG.error(_("JSON serialization failed."))
raise
with excutils.save_and_reraise_exception():
LOG.error(_("JSON serialization failed."))
def _deserialize(data):
@ -107,7 +114,7 @@ class ZmqSocket(object):
"""
def __init__(self, addr, zmq_type, bind=True, subscribe=None):
self.sock = ZMQ_CTX.socket(zmq_type)
self.sock = _get_ctxt().socket(zmq_type)
self.addr = addr
self.type = zmq_type
self.subscriptions = []
@ -181,11 +188,15 @@ class ZmqSocket(object):
pass
self.subscriptions = []
# Linger -1 prevents lost/dropped messages
try:
self.sock.close(linger=-1)
# Default is to linger
self.sock.close()
except Exception:
pass
# While this is a bad thing to happen,
# it would be much worse if some of the code calling this
# were to fail. For now, lets log, and later evaluate
# if we can safely raise here.
LOG.error("ZeroMQ socket could not be closed.")
self.sock = None
def recv(self):
@ -202,12 +213,23 @@ class ZmqSocket(object):
class ZmqClient(object):
"""Client for ZMQ sockets."""
def __init__(self, addr, socket_type=zmq.PUSH, bind=False):
def __init__(self, addr, socket_type=None, bind=False):
if socket_type is None:
socket_type = zmq.PUSH
self.outq = ZmqSocket(addr, socket_type, bind=bind)
def cast(self, msg_id, topic, data):
self.outq.send([str(msg_id), str(topic), str('cast'),
_serialize(data)])
def cast(self, msg_id, topic, data, envelope=False):
msg_id = msg_id or 0
if not envelope:
self.outq.send(map(bytes,
(msg_id, topic, 'cast', _serialize(data))))
return
rpc_envelope = rpc_common.serialize_msg(data[1], envelope)
zmq_msg = reduce(lambda x, y: x + y, rpc_envelope.items())
self.outq.send(map(bytes,
(msg_id, topic, 'impl_zmq_v2', data[0]) + zmq_msg))
def close(self):
self.outq.close()
@ -250,16 +272,17 @@ class InternalContext(object):
"""Process a curried message and cast the result to topic."""
LOG.debug(_("Running func with context: %s"), ctx.to_dict())
data.setdefault('version', None)
data.setdefault('args', [])
data.setdefault('args', {})
try:
result = proxy.dispatch(
ctx, data['version'], data['method'], **data['args'])
ctx, data['version'], data['method'],
data.get('namespace'), **data['args'])
return ConsumerBase.normalize_reply(result, ctx.replies)
except greenlet.GreenletExit:
# ignore these since they are just from shutdowns
pass
except rpc_common.ClientException, e:
except rpc_common.ClientException as e:
LOG.debug(_("Expected exception during message handling (%s)") %
e._exc_info[1])
return {'exc':
@ -273,21 +296,26 @@ class InternalContext(object):
def reply(self, ctx, proxy,
msg_id=None, context=None, topic=None, msg=None):
"""Reply to a casted call."""
# Our real method is curried into msg['args']
# NOTE(ewindisch): context kwarg exists for Grizzly compat.
# this may be able to be removed earlier than
# 'I' if ConsumerBase.process were refactored.
if type(msg) is list:
payload = msg[-1]
else:
payload = msg
child_ctx = RpcContext.unmarshal(msg[0])
response = ConsumerBase.normalize_reply(
self._get_response(child_ctx, proxy, topic, msg[1]),
self._get_response(ctx, proxy, topic, payload),
ctx.replies)
LOG.debug(_("Sending reply"))
cast(CONF, ctx, topic, {
_multi_send(_cast, ctx, topic, {
'method': '-process_reply',
'args': {
'msg_id': msg_id,
'msg_id': msg_id, # Include for Folsom compat.
'response': response
}
})
}, _msg_id=msg_id)
class ConsumerBase(object):
@ -306,24 +334,25 @@ class ConsumerBase(object):
else:
return [result]
def process(self, style, target, proxy, ctx, data):
def process(self, proxy, ctx, data):
data.setdefault('version', None)
data.setdefault('args', {})
# Method starting with - are
# processed internally. (non-valid method name)
method = data['method']
method = data.get('method')
if not method:
LOG.error(_("RPC message did not include method."))
return
# Internal method
# uses internal context for safety.
if data['method'][0] == '-':
# For reply / process_reply
method = method[1:]
if method == 'reply':
self.private_ctx.reply(ctx, proxy, **data['args'])
if method == '-reply':
self.private_ctx.reply(ctx, proxy, **data['args'])
return
data.setdefault('version', None)
data.setdefault('args', [])
proxy.dispatch(ctx, data['version'],
data['method'], **data['args'])
data['method'], data.get('namespace'), **data['args'])
class ZmqBaseReactor(ConsumerBase):
@ -409,53 +438,126 @@ class ZmqProxy(ZmqBaseReactor):
def __init__(self, conf):
super(ZmqProxy, self).__init__(conf)
pathsep = set((os.path.sep or '', os.path.altsep or '', '/', '\\'))
self.badchars = re.compile(r'[%s]' % re.escape(''.join(pathsep)))
self.topic_proxy = {}
ipc_dir = CONF.rpc_zmq_ipc_dir
self.topic_proxy['zmq_replies'] = \
ZmqSocket("ipc://%s/zmq_topic_zmq_replies" % (ipc_dir, ),
zmq.PUB, bind=True)
self.sockets.append(self.topic_proxy['zmq_replies'])
def consume(self, sock):
ipc_dir = CONF.rpc_zmq_ipc_dir
#TODO(ewindisch): use zero-copy (i.e. references, not copying)
data = sock.recv()
msg_id, topic, style, in_msg = data
topic = topic.split('.', 1)[0]
topic = data[1]
LOG.debug(_("CONSUMER GOT %s"), ' '.join(map(pformat, data)))
# Handle zmq_replies magic
if topic.startswith('fanout~'):
sock_type = zmq.PUB
topic = topic.split('.', 1)[0]
elif topic.startswith('zmq_replies'):
sock_type = zmq.PUB
inside = _deserialize(in_msg)
msg_id = inside[-1]['args']['msg_id']
response = inside[-1]['args']['response']
LOG.debug(_("->response->%s"), response)
data = [str(msg_id), _serialize(response)]
else:
sock_type = zmq.PUSH
if not topic in self.topic_proxy:
outq = ZmqSocket("ipc://%s/zmq_topic_%s" % (ipc_dir, topic),
sock_type, bind=True)
self.topic_proxy[topic] = outq
self.sockets.append(outq)
LOG.info(_("Created topic proxy: %s"), topic)
if topic not in self.topic_proxy:
def publisher(waiter):
LOG.info(_("Creating proxy for topic: %s"), topic)
# It takes some time for a pub socket to open,
# before we can have any faith in doing a send() to it.
if sock_type == zmq.PUB:
eventlet.sleep(.5)
try:
# The topic is received over the network,
# don't trust this input.
if self.badchars.search(topic) is not None:
emsg = _("Topic contained dangerous characters.")
LOG.warn(emsg)
raise RPCException(emsg)
LOG.debug(_("ROUTER RELAY-OUT START %(data)s") % {'data': data})
self.topic_proxy[topic].send(data)
LOG.debug(_("ROUTER RELAY-OUT SUCCEEDED %(data)s") % {'data': data})
out_sock = ZmqSocket("ipc://%s/zmq_topic_%s" %
(ipc_dir, topic),
sock_type, bind=True)
except RPCException:
waiter.send_exception(*sys.exc_info())
return
self.topic_proxy[topic] = eventlet.queue.LightQueue(
CONF.rpc_zmq_topic_backlog)
self.sockets.append(out_sock)
# It takes some time for a pub socket to open,
# before we can have any faith in doing a send() to it.
if sock_type == zmq.PUB:
eventlet.sleep(.5)
waiter.send(True)
while(True):
data = self.topic_proxy[topic].get()
out_sock.send(data)
LOG.debug(_("ROUTER RELAY-OUT SUCCEEDED %(data)s") %
{'data': data})
wait_sock_creation = eventlet.event.Event()
eventlet.spawn(publisher, wait_sock_creation)
try:
wait_sock_creation.wait()
except RPCException:
LOG.error(_("Topic socket file creation failed."))
return
try:
self.topic_proxy[topic].put_nowait(data)
LOG.debug(_("ROUTER RELAY-OUT QUEUED %(data)s") %
{'data': data})
except eventlet.queue.Full:
LOG.error(_("Local per-topic backlog buffer full for topic "
"%(topic)s. Dropping message.") % {'topic': topic})
def consume_in_thread(self):
"""Runs the ZmqProxy service"""
ipc_dir = CONF.rpc_zmq_ipc_dir
consume_in = "tcp://%s:%s" % \
(CONF.rpc_zmq_bind_address,
CONF.rpc_zmq_port)
consumption_proxy = InternalContext(None)
if not os.path.isdir(ipc_dir):
try:
utils.execute('mkdir', '-p', ipc_dir, run_as_root=True)
utils.execute('chown', "%s:%s" % (os.getuid(), os.getgid()),
ipc_dir, run_as_root=True)
utils.execute('chmod', '750', ipc_dir, run_as_root=True)
except utils.ProcessExecutionError:
with excutils.save_and_reraise_exception():
LOG.error(_("Could not create IPC directory %s") %
(ipc_dir, ))
try:
self.register(consumption_proxy,
consume_in,
zmq.PULL,
out_bind=True)
except zmq.ZMQError:
with excutils.save_and_reraise_exception():
LOG.error(_("Could not create ZeroMQ receiver daemon. "
"Socket may already be in use."))
super(ZmqProxy, self).consume_in_thread()
def unflatten_envelope(packenv):
"""Unflattens the RPC envelope.
Takes a list and returns a dictionary.
i.e. [1,2,3,4] => {1: 2, 3: 4}
"""
i = iter(packenv)
h = {}
try:
while True:
k = i.next()
h[k] = i.next()
except StopIteration:
return h
class ZmqReactor(ZmqBaseReactor):
@ -478,38 +580,53 @@ class ZmqReactor(ZmqBaseReactor):
self.mapping[sock].send(data)
return
msg_id, topic, style, in_msg = data
ctx, request = _deserialize(in_msg)
ctx = RpcContext.unmarshal(ctx)
proxy = self.proxies[sock]
self.pool.spawn_n(self.process, style, topic,
proxy, ctx, request)
if data[2] == 'cast': # Legacy protocol
packenv = data[3]
ctx, msg = _deserialize(packenv)
request = rpc_common.deserialize_msg(msg)
ctx = RpcContext.unmarshal(ctx)
elif data[2] == 'impl_zmq_v2':
packenv = data[4:]
msg = unflatten_envelope(packenv)
request = rpc_common.deserialize_msg(msg)
# Unmarshal only after verifying the message.
ctx = RpcContext.unmarshal(data[3])
else:
LOG.error(_("ZMQ Envelope version unsupported or unknown."))
return
self.pool.spawn_n(self.process, proxy, ctx, request)
class Connection(rpc_common.Connection):
"""Manages connections and threads."""
def __init__(self, conf):
self.topics = []
self.reactor = ZmqReactor(conf)
def create_consumer(self, topic, proxy, fanout=False):
# Only consume on the base topic name.
topic = topic.split('.', 1)[0]
LOG.info(_("Create Consumer for topic (%(topic)s)") %
{'topic': topic})
# Register with matchmaker.
_get_matchmaker().register(topic, CONF.rpc_zmq_host)
# Subscription scenarios
if fanout:
subscribe = ('', fanout)[type(fanout) == str]
sock_type = zmq.SUB
topic = 'fanout~' + topic
subscribe = ('', fanout)[type(fanout) == str]
topic = 'fanout~' + topic.split('.', 1)[0]
else:
sock_type = zmq.PULL
subscribe = None
topic = '.'.join((topic.split('.', 1)[0], CONF.rpc_zmq_host))
if topic in self.topics:
LOG.info(_("Skipping topic registration. Already registered."))
return
# Receive messages from (local) proxy
inaddr = "ipc://%s/zmq_topic_%s" % \
@ -520,18 +637,26 @@ class Connection(rpc_common.Connection):
self.reactor.register(proxy, inaddr, sock_type,
subscribe=subscribe, in_bind=False)
self.topics.append(topic)
def close(self):
_get_matchmaker().stop_heartbeat()
for topic in self.topics:
_get_matchmaker().unregister(topic, CONF.rpc_zmq_host)
self.reactor.close()
self.topics = []
def wait(self):
self.reactor.wait()
def consume_in_thread(self):
_get_matchmaker().start_heartbeat()
self.reactor.consume_in_thread()
def _cast(addr, context, msg_id, topic, msg, timeout=None):
def _cast(addr, context, topic, msg, timeout=None, envelope=False,
_msg_id=None):
timeout_cast = timeout or CONF.rpc_cast_timeout
payload = [RpcContext.marshal(context), msg]
@ -540,7 +665,7 @@ def _cast(addr, context, msg_id, topic, msg, timeout=None):
conn = ZmqClient(addr)
# assumes cast can't return an exception
conn.cast(msg_id, topic, payload)
conn.cast(_msg_id, topic, payload, envelope)
except zmq.ZMQError:
raise RPCException("Cast failed. ZMQ Socket Exception")
finally:
@ -548,7 +673,8 @@ def _cast(addr, context, msg_id, topic, msg, timeout=None):
conn.close()
def _call(addr, context, msg_id, topic, msg, timeout=None):
def _call(addr, context, topic, msg, timeout=None,
envelope=False):
# timeout_response is how long we wait for a response
timeout = timeout or CONF.rpc_response_timeout
@ -565,8 +691,8 @@ def _call(addr, context, msg_id, topic, msg, timeout=None):
'method': '-reply',
'args': {
'msg_id': msg_id,
'context': mcontext,
'topic': reply_topic,
# TODO(ewindisch): safe to remove mcontext in I.
'msg': [mcontext, msg]
}
}
@ -578,22 +704,36 @@ def _call(addr, context, msg_id, topic, msg, timeout=None):
with Timeout(timeout, exception=rpc_common.Timeout):
try:
msg_waiter = ZmqSocket(
"ipc://%s/zmq_topic_zmq_replies" % CONF.rpc_zmq_ipc_dir,
"ipc://%s/zmq_topic_zmq_replies.%s" %
(CONF.rpc_zmq_ipc_dir,
CONF.rpc_zmq_host),
zmq.SUB, subscribe=msg_id, bind=False
)
LOG.debug(_("Sending cast"))
_cast(addr, context, msg_id, topic, payload)
_cast(addr, context, topic, payload, envelope)
LOG.debug(_("Cast sent; Waiting reply"))
# Blocks until receives reply
msg = msg_waiter.recv()
LOG.debug(_("Received message: %s"), msg)
LOG.debug(_("Unpacking response"))
responses = _deserialize(msg[-1])
if msg[2] == 'cast': # Legacy version
raw_msg = _deserialize(msg[-1])[-1]
elif msg[2] == 'impl_zmq_v2':
rpc_envelope = unflatten_envelope(msg[4:])
raw_msg = rpc_common.deserialize_msg(rpc_envelope)
else:
raise rpc_common.UnsupportedRpcEnvelopeVersion(
_("Unsupported or unknown ZMQ envelope returned."))
responses = raw_msg['args']['response']
# ZMQError trumps the Timeout error.
except zmq.ZMQError:
raise RPCException("ZMQ Socket Error")
except (IndexError, KeyError):
raise RPCException(_("RPC Message Invalid."))
finally:
if 'msg_waiter' in vars():
msg_waiter.close()
@ -609,7 +749,8 @@ def _call(addr, context, msg_id, topic, msg, timeout=None):
return responses[-1]
def _multi_send(method, context, topic, msg, timeout=None):
def _multi_send(method, context, topic, msg, timeout=None,
envelope=False, _msg_id=None):
"""
Wraps the sending of messages,
dispatches to the matchmaker and sends
@ -618,7 +759,7 @@ def _multi_send(method, context, topic, msg, timeout=None):
conf = CONF
LOG.debug(_("%(msg)s") % {'msg': ' '.join(map(pformat, (topic, msg)))})
queues = matchmaker.queues(topic)
queues = _get_matchmaker().queues(topic)
LOG.debug(_("Sending message(s) to: %s"), queues)
# Don't stack if we have no matchmaker results
@ -626,7 +767,7 @@ def _multi_send(method, context, topic, msg, timeout=None):
LOG.warn(_("No matchmaker results. Not casting."))
# While not strictly a timeout, callers know how to handle
# this exception and a timeout isn't too big a lie.
raise rpc_common.Timeout, "No match from matchmaker."
raise rpc_common.Timeout(_("No match from matchmaker."))
# This supports brokerless fanout (addresses > 1)
for queue in queues:
@ -635,9 +776,11 @@ def _multi_send(method, context, topic, msg, timeout=None):
if method.__name__ == '_cast':
eventlet.spawn_n(method, _addr, context,
_topic, _topic, msg, timeout)
_topic, msg, timeout, envelope,
_msg_id)
return
return method(_addr, context, _topic, _topic, msg, timeout)
return method(_addr, context, _topic, msg, timeout,
envelope)
def create_connection(conf, new=True):
@ -667,7 +810,7 @@ def fanout_cast(conf, context, topic, msg, **kwargs):
_multi_send(_cast, context, 'fanout~' + str(topic), msg, **kwargs)
def notify(conf, context, topic, msg, **kwargs):
def notify(conf, context, topic, msg, envelope):
"""
Send notification event.
Notifications are sent to topic-priority.
@ -675,51 +818,34 @@ def notify(conf, context, topic, msg, **kwargs):
"""
# NOTE(ewindisch): dot-priority in rpc notifier does not
# work with our assumptions.
topic.replace('.', '-')
cast(conf, context, topic, msg, **kwargs)
topic = topic.replace('.', '-')
cast(conf, context, topic, msg, envelope=envelope)
def cleanup():
"""Clean up resources in use by implementation."""
global ZMQ_CTX
global matchmaker
matchmaker = None
ZMQ_CTX.term()
if ZMQ_CTX:
ZMQ_CTX.term()
ZMQ_CTX = None
def register_opts(conf):
"""Registration of options for this driver."""
#NOTE(ewindisch): ZMQ_CTX and matchmaker
# are initialized here as this is as good
# an initialization method as any.
# We memoize through these globals
global ZMQ_CTX
global matchmaker
global CONF
matchmaker = None
if not CONF:
conf.register_opts(zmq_opts)
CONF = conf
# Don't re-set, if this method is called twice.
def _get_ctxt():
if not zmq:
raise ImportError("Failed to import eventlet.green.zmq")
global ZMQ_CTX
if not ZMQ_CTX:
ZMQ_CTX = zmq.Context(conf.rpc_zmq_contexts)
ZMQ_CTX = zmq.Context(CONF.rpc_zmq_contexts)
return ZMQ_CTX
def _get_matchmaker(*args, **kwargs):
global matchmaker
if not matchmaker:
# rpc_zmq_matchmaker should be set to a 'module.Class'
mm_path = conf.rpc_zmq_matchmaker.split('.')
mm_module = '.'.join(mm_path[:-1])
mm_class = mm_path[-1]
# Only initialize a class.
if mm_path[-1][0] not in string.ascii_uppercase:
LOG.error(_("Matchmaker could not be loaded.\n"
"rpc_zmq_matchmaker is not a class."))
raise RPCException(_("Error loading Matchmaker."))
mm_impl = importutils.import_module(mm_module)
mm_constructor = getattr(mm_impl, mm_class)
matchmaker = mm_constructor()
register_opts(cfg.CONF)
matchmaker = importutils.import_object(
CONF.rpc_zmq_matchmaker, *args, **kwargs)
return matchmaker

189
reddwarf/openstack/common/rpc/matchmaker.py
View File

@ -22,7 +22,9 @@ import contextlib
import itertools
import json
from reddwarf.openstack.common import cfg
import eventlet
from oslo.config import cfg
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import log as logging
@ -32,6 +34,12 @@ matchmaker_opts = [
cfg.StrOpt('matchmaker_ringfile',
default='/etc/nova/matchmaker_ring.json',
help='Matchmaker ring file (JSON)'),
cfg.IntOpt('matchmaker_heartbeat_freq',
default=300,
help='Heartbeat frequency'),
cfg.IntOpt('matchmaker_heartbeat_ttl',
default=600,
help='Heartbeat time-to-live.'),
]
CONF = cfg.CONF
@ -69,12 +77,73 @@ class Binding(object):
class MatchMakerBase(object):
"""Match Maker Base Class."""
"""
Match Maker Base Class.
Build off HeartbeatMatchMakerBase if building a
heartbeat-capable MatchMaker.
"""
def __init__(self):
# Array of tuples. Index [2] toggles negation, [3] is last-if-true
self.bindings = []
self.no_heartbeat_msg = _('Matchmaker does not implement '
'registration or heartbeat.')
def register(self, key, host):
"""
Register a host on a backend.
Heartbeats, if applicable, may keepalive registration.
"""
pass
def ack_alive(self, key, host):
"""
Acknowledge that a key.host is alive.
Used internally for updating heartbeats,
but may also be used publically to acknowledge
a system is alive (i.e. rpc message successfully
sent to host)
"""
pass
def is_alive(self, topic, host):
"""
Checks if a host is alive.
"""
pass
def expire(self, topic, host):
"""
Explicitly expire a host's registration.
"""
pass
def send_heartbeats(self):
"""
Send all heartbeats.
Use start_heartbeat to spawn a heartbeat greenthread,
which loops this method.
"""
pass
def unregister(self, key, host):
"""
Unregister a topic.
"""
pass
def start_heartbeat(self):
"""
Spawn heartbeat greenthread.
"""
pass
def stop_heartbeat(self):
"""
Destroys the heartbeat greenthread.
"""
pass
def add_binding(self, binding, rule, last=True):
self.bindings.append((binding, rule, False, last))
@ -98,6 +167,103 @@ class MatchMakerBase(object):
return workers
class HeartbeatMatchMakerBase(MatchMakerBase):
"""
Base for a heart-beat capable MatchMaker.
Provides common methods for registering,
unregistering, and maintaining heartbeats.
"""
def __init__(self):
self.hosts = set()
self._heart = None
self.host_topic = {}
super(HeartbeatMatchMakerBase, self).__init__()
def send_heartbeats(self):
"""
Send all heartbeats.
Use start_heartbeat to spawn a heartbeat greenthread,
which loops this method.
"""
for key, host in self.host_topic:
self.ack_alive(key, host)
def ack_alive(self, key, host):
"""
Acknowledge that a host.topic is alive.
Used internally for updating heartbeats,
but may also be used publically to acknowledge
a system is alive (i.e. rpc message successfully
sent to host)
"""
raise NotImplementedError("Must implement ack_alive")
def backend_register(self, key, host):
"""
Implements registration logic.
Called by register(self,key,host)
"""
raise NotImplementedError("Must implement backend_register")
def backend_unregister(self, key, key_host):
"""
Implements de-registration logic.
Called by unregister(self,key,host)
"""
raise NotImplementedError("Must implement backend_unregister")
def register(self, key, host):
"""
Register a host on a backend.
Heartbeats, if applicable, may keepalive registration.
"""
self.hosts.add(host)
self.host_topic[(key, host)] = host
key_host = '.'.join((key, host))
self.backend_register(key, key_host)
self.ack_alive(key, host)
def unregister(self, key, host):
"""
Unregister a topic.
"""
if (key, host) in self.host_topic:
del self.host_topic[(key, host)]
self.hosts.discard(host)
self.backend_unregister(key, '.'.join((key, host)))
LOG.info(_("Matchmaker unregistered: %s, %s" % (key, host)))
def start_heartbeat(self):
"""
Implementation of MatchMakerBase.start_heartbeat
Launches greenthread looping send_heartbeats(),
yielding for CONF.matchmaker_heartbeat_freq seconds
between iterations.
"""
if len(self.hosts) == 0:
raise MatchMakerException(
_("Register before starting heartbeat."))
def do_heartbeat():
while True:
self.send_heartbeats()
eventlet.sleep(CONF.matchmaker_heartbeat_freq)
self._heart = eventlet.spawn(do_heartbeat)
def stop_heartbeat(self):
"""
Destroys the heartbeat greenthread.
"""
if self._heart:
self._heart.kill()
class DirectBinding(Binding):
"""
Specifies a host in the key via a '.' character
@ -201,24 +367,25 @@ class FanoutRingExchange(RingExchange):
class LocalhostExchange(Exchange):
"""Exchange where all direct topics are local."""
def __init__(self):
def __init__(self, host='localhost'):
self.host = host
super(Exchange, self).__init__()
def run(self, key):
return [(key.split('.')[0] + '.localhost', 'localhost')]
return [('.'.join((key.split('.')[0], self.host)), self.host)]
class DirectExchange(Exchange):
"""
Exchange where all topic keys are split, sending to second half.
i.e. "compute.host" sends a message to "compute" running on "host"
i.e. "compute.host" sends a message to "compute.host" running on "host"
"""
def __init__(self):
super(Exchange, self).__init__()
def run(self, key):
b, e = key.split('.', 1)
return [(b, e)]
e = key.split('.', 1)[1]
return [(key, e)]
class MatchMakerRing(MatchMakerBase):
@ -237,11 +404,11 @@ class MatchMakerLocalhost(MatchMakerBase):
Match Maker where all bare topics resolve to localhost.
Useful for testing.
"""
def __init__(self):
def __init__(self, host='localhost'):
super(MatchMakerLocalhost, self).__init__()
self.add_binding(FanoutBinding(), LocalhostExchange())
self.add_binding(FanoutBinding(), LocalhostExchange(host))
self.add_binding(DirectBinding(), DirectExchange())
self.add_binding(TopicBinding(), LocalhostExchange())
self.add_binding(TopicBinding(), LocalhostExchange(host))
class MatchMakerStub(MatchMakerBase):

149
reddwarf/openstack/common/rpc/matchmaker_redis.py Normal file
View File

@ -0,0 +1,149 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013 Cloudscaling Group, Inc
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
The MatchMaker classes should accept a Topic or Fanout exchange key and
return keys for direct exchanges, per (approximate) AMQP parlance.
"""
from oslo.config import cfg
from reddwarf.openstack.common import importutils
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common.rpc import matchmaker as mm_common
redis = importutils.try_import('redis')
matchmaker_redis_opts = [
cfg.StrOpt('host',
default='127.0.0.1',
help='Host to locate redis'),
cfg.IntOpt('port',
default=6379,
help='Use this port to connect to redis host.'),
cfg.StrOpt('password',
default=None,
help='Password for Redis server. (optional)'),
]
CONF = cfg.CONF
opt_group = cfg.OptGroup(name='matchmaker_redis',
title='Options for Redis-based MatchMaker')
CONF.register_group(opt_group)
CONF.register_opts(matchmaker_redis_opts, opt_group)
LOG = logging.getLogger(__name__)
class RedisExchange(mm_common.Exchange):
def __init__(self, matchmaker):
self.matchmaker = matchmaker
self.redis = matchmaker.redis
super(RedisExchange, self).__init__()
class RedisTopicExchange(RedisExchange):
"""
Exchange where all topic keys are split, sending to second half.
i.e. "compute.host" sends a message to "compute" running on "host"
"""
def run(self, topic):
while True:
member_name = self.redis.srandmember(topic)
if not member_name:
# If this happens, there are no
# longer any members.
break
if not self.matchmaker.is_alive(topic, member_name):
continue
host = member_name.split('.', 1)[1]
return [(member_name, host)]
return []
class RedisFanoutExchange(RedisExchange):
"""
Return a list of all hosts.
"""
def run(self, topic):
topic = topic.split('~', 1)[1]
hosts = self.redis.smembers(topic)
good_hosts = filter(
lambda host: self.matchmaker.is_alive(topic, host), hosts)
return [(x, x.split('.', 1)[1]) for x in good_hosts]
class MatchMakerRedis(mm_common.HeartbeatMatchMakerBase):
"""
MatchMaker registering and looking-up hosts with a Redis server.
"""
def __init__(self):
super(MatchMakerRedis, self).__init__()
if not redis:
raise ImportError("Failed to import module redis.")
self.redis = redis.StrictRedis(
host=CONF.matchmaker_redis.host,
port=CONF.matchmaker_redis.port,
password=CONF.matchmaker_redis.password)
self.add_binding(mm_common.FanoutBinding(), RedisFanoutExchange(self))
self.add_binding(mm_common.DirectBinding(), mm_common.DirectExchange())
self.add_binding(mm_common.TopicBinding(), RedisTopicExchange(self))
def ack_alive(self, key, host):
topic = "%s.%s" % (key, host)
if not self.redis.expire(topic, CONF.matchmaker_heartbeat_ttl):
# If we could not update the expiration, the key
# might have been pruned. Re-register, creating a new
# key in Redis.
self.register(self.topic_host[host], host)
def is_alive(self, topic, host):
if self.redis.ttl(host) == -1:
self.expire(topic, host)
return False
return True
def expire(self, topic, host):
with self.redis.pipeline() as pipe:
pipe.multi()
pipe.delete(host)
pipe.srem(topic, host)
pipe.execute()
def backend_register(self, key, key_host):
with self.redis.pipeline() as pipe:
pipe.multi()
pipe.sadd(key, key_host)
# No value is needed, we just
# care if it exists. Sets aren't viable
# because only keys can expire.
pipe.set(key_host, '')
pipe.execute()
def backend_unregister(self, key, key_host):
with self.redis.pipeline() as pipe:
pipe.multi()
pipe.srem(key, key_host)
pipe.delete(key_host)
pipe.execute()

28
reddwarf/openstack/common/rpc/proxy.py
View File

@ -58,9 +58,13 @@ class RpcProxy(object):
"""Return the topic to use for a message."""
return topic if topic else self.topic
@staticmethod
def make_namespaced_msg(method, namespace, **kwargs):
return {'method': method, 'namespace': namespace, 'args': kwargs}
@staticmethod
def make_msg(method, **kwargs):
return {'method': method, 'args': kwargs}
return RpcProxy.make_namespaced_msg(method, None, **kwargs)
def call(self, context, msg, topic=None, version=None, timeout=None):
"""rpc.call() a remote method.
@ -68,16 +72,21 @@ class RpcProxy(object):
:param context: The request context
:param msg: The message to send, including the method and args.
:param topic: Override the topic for this message.
:param version: (Optional) Override the requested API version in this
message.
:param timeout: (Optional) A timeout to use when waiting for the
response. If no timeout is specified, a default timeout will be
used that is usually sufficient.
:param version: (Optional) Override the requested API version in this
message.
:returns: The return value from the remote method.
"""
self._set_version(msg, version)
return rpc.call(context, self._get_topic(topic), msg, timeout)
real_topic = self._get_topic(topic)
try:
return rpc.call(context, real_topic, msg, timeout)
except rpc.common.Timeout as exc:
raise rpc.common.Timeout(
exc.info, real_topic, msg.get('method'))
def multicall(self, context, msg, topic=None, version=None, timeout=None):
"""rpc.multicall() a remote method.
@ -85,17 +94,22 @@ class RpcProxy(object):
:param context: The request context
:param msg: The message to send, including the method and args.
:param topic: Override the topic for this message.
:param version: (Optional) Override the requested API version in this
message.
:param timeout: (Optional) A timeout to use when waiting for the
response. If no timeout is specified, a default timeout will be
used that is usually sufficient.
:param version: (Optional) Override the requested API version in this
message.
:returns: An iterator that lets you process each of the returned values
from the remote method as they arrive.
"""
self._set_version(msg, version)
return rpc.multicall(context, self._get_topic(topic), msg, timeout)
real_topic = self._get_topic(topic)
try:
return rpc.multicall(context, real_topic, msg, timeout)
except rpc.common.Timeout as exc:
raise rpc.common.Timeout(
exc.info, real_topic, msg.get('method'))
def cast(self, context, msg, topic=None, version=None):
"""rpc.cast() a remote method.

41
reddwarf/openstack/common/rpc/zmq_receiver.py Executable file
View File

@ -0,0 +1,41 @@
#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import eventlet
eventlet.monkey_patch()
import contextlib
import sys
from oslo.config import cfg
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common import rpc
from reddwarf.openstack.common.rpc import impl_zmq
CONF = cfg.CONF
CONF.register_opts(rpc.rpc_opts)
CONF.register_opts(impl_zmq.zmq_opts)
def main():
CONF(sys.argv[1:], project='oslo')
logging.setup("oslo")
with contextlib.closing(impl_zmq.ZmqProxy(CONF)) as reactor:
reactor.consume_in_thread()
reactor.wait()

19
reddwarf/openstack/common/service.py
View File

@ -27,17 +27,17 @@ import sys
import time
import eventlet
import extras
import logging as std_logging
from oslo.config import cfg
from reddwarf.openstack.common import cfg
from reddwarf.openstack.common import eventlet_backdoor
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import importutils
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common import threadgroup
rpc = extras.try_import('reddwarf.openstack.common.rpc')
rpc = importutils.try_import('reddwarf.openstack.common.rpc')
CONF = cfg.CONF
LOG = logging.getLogger(__name__)
@ -51,7 +51,7 @@ class Launcher(object):
:returns: None
"""
self._services = threadgroup.ThreadGroup('launcher')
self._services = threadgroup.ThreadGroup()
eventlet_backdoor.initialize_if_enabled()
@staticmethod
@ -243,7 +243,10 @@ class ProcessLauncher(object):
def _wait_child(self):
try:
pid, status = os.wait()
# Don't block if no child processes have exited
pid, status = os.waitpid(0, os.WNOHANG)
if not pid:
return None
except OSError as exc:
if exc.errno not in (errno.EINTR, errno.ECHILD):
raise
@ -275,6 +278,10 @@ class ProcessLauncher(object):
while self.running:
wrap = self._wait_child()
if not wrap:
# Yield to other threads if no children have exited
# Sleep for a short time to avoid excessive CPU usage
# (see bug #1095346)
eventlet.greenthread.sleep(.01)
continue
while self.running and len(wrap.children) < wrap.workers:
@ -303,7 +310,7 @@ class Service(object):
"""Service object for binaries running on hosts."""
def __init__(self, threads=1000):
self.tg = threadgroup.ThreadGroup('service', threads)
self.tg = threadgroup.ThreadGroup(threads)
def start(self):
pass

10
reddwarf/openstack/common/threadgroup.py
View File

@ -38,8 +38,7 @@ class Thread(object):
:class:`ThreadGroup`. The Thread will notify the :class:`ThreadGroup` when
it has done so it can be removed from the threads list.
"""
def __init__(self, name, thread, group):
self.name = name
def __init__(self, thread, group):
self.thread = thread
self.thread.link(_thread_done, group=group, thread=self)
@ -57,22 +56,21 @@ class ThreadGroup(object):
when need be).
* provide an easy API to add timers.
"""
def __init__(self, name, thread_pool_size=10):
self.name = name
def __init__(self, thread_pool_size=10):
self.pool = greenpool.GreenPool(thread_pool_size)
self.threads = []
self.timers = []
def add_timer(self, interval, callback, initial_delay=None,
*args, **kwargs):
pulse = loopingcall.LoopingCall(callback, *args, **kwargs)
pulse = loopingcall.FixedIntervalLoopingCall(callback, *args, **kwargs)
pulse.start(interval=interval,
initial_delay=initial_delay)
self.timers.append(pulse)
def add_thread(self, callback, *args, **kwargs):
gt = self.pool.spawn(callback, *args, **kwargs)
th = Thread(callback.__name__, gt, self)
th = Thread(gt, self)
self.threads.append(th)
def thread_done(self, thread):

40
reddwarf/openstack/common/timeutils.py
View File

@ -1,6 +1,6 @@
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2011 OpenStack LLC.
# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
@ -25,18 +25,22 @@ import datetime
import iso8601
TIME_FORMAT = "%Y-%m-%dT%H:%M:%S"
PERFECT_TIME_FORMAT = "%Y-%m-%dT%H:%M:%S.%f"
# ISO 8601 extended time format with microseconds
_ISO8601_TIME_FORMAT_SUBSECOND = '%Y-%m-%dT%H:%M:%S.%f'
_ISO8601_TIME_FORMAT = '%Y-%m-%dT%H:%M:%S'
PERFECT_TIME_FORMAT = _ISO8601_TIME_FORMAT_SUBSECOND
def isotime(at=None):
def isotime(at=None, subsecond=False):
"""Stringify time in ISO 8601 format"""
if not at:
at = utcnow()
str = at.strftime(TIME_FORMAT)
st = at.strftime(_ISO8601_TIME_FORMAT
if not subsecond
else _ISO8601_TIME_FORMAT_SUBSECOND)
tz = at.tzinfo.tzname(None) if at.tzinfo else 'UTC'
str += ('Z' if tz == 'UTC' else tz)
return str
st += ('Z' if tz == 'UTC' else tz)
return st
def parse_isotime(timestr):
@ -71,11 +75,15 @@ def normalize_time(timestamp):
def is_older_than(before, seconds):
"""Return True if before is older than seconds."""
if isinstance(before, basestring):
before = parse_strtime(before).replace(tzinfo=None)
return utcnow() - before > datetime.timedelta(seconds=seconds)
def is_newer_than(after, seconds):
"""Return True if after is newer than seconds."""
if isinstance(after, basestring):
after = parse_strtime(after).replace(tzinfo=None)
return after - utcnow() > datetime.timedelta(seconds=seconds)
@ -94,6 +102,11 @@ def utcnow():
return datetime.datetime.utcnow()
def iso8601_from_timestamp(timestamp):
"""Returns a iso8601 formated date from timestamp"""
return isotime(datetime.datetime.utcfromtimestamp(timestamp))
utcnow.override_time = None
@ -158,3 +171,16 @@ def delta_seconds(before, after):
except AttributeError:
return ((delta.days * 24 * 3600) + delta.seconds +
float(delta.microseconds) / (10 ** 6))
def is_soon(dt, window):
"""
Determines if time is going to happen in the next window seconds.
:params dt: the time
:params window: minimum seconds to remain to consider the time not soon
:return: True if expiration is within the given duration
"""
soon = (utcnow() + datetime.timedelta(seconds=window))
return normalize_time(dt) <= soon

4
reddwarf/quota/quota.py
View File

@ -19,11 +19,9 @@
from reddwarf.openstack.common import log as logging
from reddwarf.openstack.common.gettextutils import _
from reddwarf.openstack.common import cfg
import datetime
from oslo.config import cfg
from reddwarf.common import exception
from reddwarf.openstack.common import importutils
from reddwarf.openstack.common import timeutils
from reddwarf.quota.models import Quota
from reddwarf.quota.models import QuotaUsage
from reddwarf.quota.models import Reservation

1
tools/pip-requires
View File

@ -14,3 +14,4 @@ lxml
python-novaclient
python-keystoneclient
iso8601
oslo.config>=1.1.0