swift/test/probe/common.py
Tim Burke 1d7e1558b3 py3: (mostly) port probe tests
There's still one problem, though: since swiftclient on py3 doesn't
support non-ASCII characters in metadata names, none of the tests in
TestReconstructorRebuildUTF8 will pass.

Change-Id: I4ec879ade534e09c3a625414d8aa1f16fd600fa4
2019-09-04 10:17:45 -07:00

583 lines
20 KiB
Python

# Copyright (c) 2010-2012 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.
from __future__ import print_function
import errno
import os
from subprocess import Popen, PIPE
import sys
from tempfile import mkdtemp
from textwrap import dedent
from time import sleep, time
from collections import defaultdict
import unittest
from hashlib import md5
from uuid import uuid4
import shutil
from six.moves.http_client import HTTPConnection
from six.moves.urllib.parse import urlparse
from swiftclient import get_auth, head_account, client
from swift.common import internal_client
from swift.obj.diskfile import get_data_dir
from swift.common.ring import Ring
from swift.common.utils import readconf, renamer, rsync_module_interpolation
from swift.common.manager import Manager
from swift.common.storage_policy import POLICIES, EC_POLICY, REPL_POLICY
from test.probe import CHECK_SERVER_TIMEOUT, VALIDATE_RSYNC
ENABLED_POLICIES = [p for p in POLICIES if not p.is_deprecated]
POLICIES_BY_TYPE = defaultdict(list)
for p in POLICIES:
POLICIES_BY_TYPE[p.policy_type].append(p)
def get_server_number(ipport, ipport2server):
server_number = ipport2server[ipport]
server, number = server_number[:-1], server_number[-1:]
try:
number = int(number)
except ValueError:
# probably the proxy
return server_number, None
return server, number
def start_server(ipport, ipport2server):
server, number = get_server_number(ipport, ipport2server)
err = Manager([server]).start(number=number, wait=True)
if err:
raise Exception('unable to start %s' % (
server if not number else '%s%s' % (server, number)))
return check_server(ipport, ipport2server)
def _check_storage(ipport, path):
conn = HTTPConnection(*ipport)
conn.request('GET', path)
resp = conn.getresponse()
# 404 because it's a nonsense path (and mount_check is false)
# 507 in case the test target is a VM using mount_check
if resp.status not in (404, 507):
raise Exception(
'Unexpected status %s' % resp.status)
return resp
def _check_proxy(ipport, user, key):
url, token = get_auth('http://%s:%d/auth/v1.0' % ipport,
user, key)
account = url.split('/')[-1]
head_account(url, token)
return url, token, account
def _retry_timeout(f, args=None, kwargs=None, timeout=CHECK_SERVER_TIMEOUT):
args = args or ()
kwargs = kwargs or {}
try_until = time() + timeout
while True:
try:
return f(*args, **kwargs)
except Exception as err:
if time() > try_until:
print(err)
fsignature = '%s(*%r, **%r)' % (f.__name__, args, kwargs)
print('Giving up on %s after %s seconds.' % (
fsignature, timeout))
raise err
sleep(0.1)
def check_server(ipport, ipport2server):
server = ipport2server[ipport]
if server[:-1] in ('account', 'container', 'object'):
if int(server[-1]) > 4:
return None
path = '/connect/1/2'
if server[:-1] == 'container':
path += '/3'
elif server[:-1] == 'object':
path += '/3/4'
rv = _retry_timeout(_check_storage, args=(ipport, path))
else:
rv = _retry_timeout(_check_proxy, args=(
ipport, 'test:tester', 'testing'))
return rv
def kill_server(ipport, ipport2server):
server, number = get_server_number(ipport, ipport2server)
err = Manager([server]).kill(number=number)
if err:
raise Exception('unable to kill %s' % (server if not number else
'%s%s' % (server, number)))
return wait_for_server_to_hangup(ipport)
def wait_for_server_to_hangup(ipport):
try_until = time() + 30
while True:
try:
conn = HTTPConnection(*ipport)
conn.request('GET', '/')
conn.getresponse()
except Exception:
break
if time() > try_until:
raise Exception(
'Still answering on %s:%s after 30 seconds' % ipport)
sleep(0.1)
def kill_nonprimary_server(primary_nodes, ipport2server):
primary_ipports = [(n['ip'], n['port']) for n in primary_nodes]
for ipport, server in ipport2server.items():
if ipport in primary_ipports:
server_type = server[:-1]
break
else:
raise Exception('Cannot figure out server type for %r' % primary_nodes)
for ipport, server in list(ipport2server.items()):
if server[:-1] == server_type and ipport not in primary_ipports:
kill_server(ipport, ipport2server)
return ipport
def add_ring_devs_to_ipport2server(ring, server_type, ipport2server,
servers_per_port=0):
# We'll number the servers by order of unique occurrence of:
# IP, if servers_per_port > 0 OR there > 1 IP in ring
# ipport, otherwise
unique_ip_count = len({dev['ip'] for dev in ring.devs if dev})
things_to_number = {}
number = 0
for dev in filter(None, ring.devs):
ip = dev['ip']
ipport = (ip, dev['port'])
unique_by = ip if servers_per_port or unique_ip_count > 1 else ipport
if unique_by not in things_to_number:
number += 1
things_to_number[unique_by] = number
ipport2server[ipport] = '%s%d' % (server_type,
things_to_number[unique_by])
def store_config_paths(name, configs):
for server_name in (name, '%s-replicator' % name):
for server in Manager([server_name]):
for i, conf in enumerate(server.conf_files(), 1):
configs[server.server][i] = conf
def get_ring(ring_name, required_replicas, required_devices,
server=None, force_validate=None, ipport2server=None,
config_paths=None):
if not server:
server = ring_name
ring = Ring('/etc/swift', ring_name=ring_name)
if ipport2server is None:
ipport2server = {} # used internally, even if not passed in
if config_paths is None:
config_paths = defaultdict(dict)
store_config_paths(server, config_paths)
repl_name = '%s-replicator' % server
repl_configs = {i: readconf(c, section_name=repl_name)
for i, c in config_paths[repl_name].items()}
servers_per_port = any(int(c.get('servers_per_port', '0'))
for c in repl_configs.values())
add_ring_devs_to_ipport2server(ring, server, ipport2server,
servers_per_port=servers_per_port)
if not VALIDATE_RSYNC and not force_validate:
return ring
# easy sanity checks
if ring.replica_count != required_replicas:
raise unittest.SkipTest('%s has %s replicas instead of %s' % (
ring.serialized_path, ring.replica_count, required_replicas))
devs = [dev for dev in ring.devs if dev is not None]
if len(devs) != required_devices:
raise unittest.SkipTest('%s has %s devices instead of %s' % (
ring.serialized_path, len(devs), required_devices))
for dev in devs:
# verify server is exposing mounted device
ipport = (dev['ip'], dev['port'])
_, server_number = get_server_number(ipport, ipport2server)
conf = repl_configs[server_number]
for device in os.listdir(conf['devices']):
if device == dev['device']:
dev_path = os.path.join(conf['devices'], device)
full_path = os.path.realpath(dev_path)
if not os.path.exists(full_path):
raise unittest.SkipTest(
'device %s in %s was not found (%s)' %
(device, conf['devices'], full_path))
break
else:
raise unittest.SkipTest(
"unable to find ring device %s under %s's devices (%s)" % (
dev['device'], server, conf['devices']))
# verify server is exposing rsync device
rsync_export = conf.get('rsync_module', '').rstrip('/')
if not rsync_export:
rsync_export = '{replication_ip}::%s' % server
cmd = "rsync %s" % rsync_module_interpolation(rsync_export, dev)
p = Popen(cmd, shell=True, stdout=PIPE)
stdout, _stderr = p.communicate()
if p.returncode:
raise unittest.SkipTest('unable to connect to rsync '
'export %s (%s)' % (rsync_export, cmd))
for line in stdout.decode().splitlines():
if line.rsplit(None, 1)[-1] == dev['device']:
break
else:
raise unittest.SkipTest("unable to find ring device %s under "
"rsync's exported devices for %s (%s)" %
(dev['device'], rsync_export, cmd))
return ring
def get_policy(**kwargs):
kwargs.setdefault('is_deprecated', False)
# go through the policies and make sure they match the
# requirements of kwargs
for policy in POLICIES:
# TODO: for EC, pop policy type here and check it first
matches = True
for key, value in kwargs.items():
try:
if getattr(policy, key) != value:
matches = False
except AttributeError:
matches = False
if matches:
return policy
raise unittest.SkipTest('No policy matching %s' % kwargs)
def run_cleanup(cmd):
p = Popen(cmd + " 2>&1", shell=True, stdout=PIPE)
stdout, _stderr = p.communicate()
if p.returncode:
raise AssertionError(
'Cleanup with %r failed: stdout: %s, stderr: %s'
% (cmd, stdout, _stderr))
print(stdout)
Manager(['all']).stop()
def resetswift():
run_cleanup("resetswift")
def kill_orphans():
run_cleanup("swift-orphans -a 0 -k 9")
class Body(object):
def __init__(self, total=3.5 * 2 ** 20):
self.length = int(total)
self.hasher = md5()
self.read_amount = 0
self.chunk = uuid4().hex.encode('ascii') * 2 ** 10
self.buff = b''
@property
def etag(self):
return self.hasher.hexdigest()
def __len__(self):
return self.length
def read(self, amount):
if len(self.buff) < amount:
try:
self.buff += next(self)
except StopIteration:
pass
rv, self.buff = self.buff[:amount], self.buff[amount:]
return rv
def __iter__(self):
return self
def __next__(self):
if self.buff:
rv, self.buff = self.buff, b''
return rv
if self.read_amount >= self.length:
raise StopIteration()
rv = self.chunk[:int(self.length - self.read_amount)]
self.read_amount += len(rv)
self.hasher.update(rv)
return rv
# for py2 compat:
next = __next__
class ProbeTest(unittest.TestCase):
"""
Don't instantiate this directly, use a child class instead.
"""
def _load_rings_and_configs(self):
self.ipport2server = {}
self.configs = defaultdict(dict)
self.account_ring = get_ring(
'account',
self.acct_cont_required_replicas,
self.acct_cont_required_devices,
ipport2server=self.ipport2server,
config_paths=self.configs)
self.container_ring = get_ring(
'container',
self.acct_cont_required_replicas,
self.acct_cont_required_devices,
ipport2server=self.ipport2server,
config_paths=self.configs)
self.policy = get_policy(**self.policy_requirements)
self.object_ring = get_ring(
self.policy.ring_name,
self.obj_required_replicas,
self.obj_required_devices,
server='object',
ipport2server=self.ipport2server,
config_paths=self.configs)
for server in Manager(['proxy-server']):
for conf in server.conf_files():
self.configs['proxy-server'] = conf
def setUp(self):
resetswift()
kill_orphans()
self._load_rings_and_configs()
try:
self.servers_per_port = any(
int(readconf(c, section_name='object-replicator').get(
'servers_per_port', '0'))
for c in self.configs['object-replicator'].values())
Manager(['main']).start(wait=True)
for ipport in self.ipport2server:
check_server(ipport, self.ipport2server)
proxy_conf = readconf(self.configs['proxy-server'],
section_name='app:proxy-server')
proxy_ipport = (proxy_conf.get('bind_ip', '127.0.0.1'),
int(proxy_conf.get('bind_port', 8080)))
self.ipport2server[proxy_ipport] = 'proxy'
self.url, self.token, self.account = check_server(
proxy_ipport, self.ipport2server)
self.account_1 = {
'url': self.url, 'token': self.token, 'account': self.account}
rv = _retry_timeout(_check_proxy, args=(
proxy_ipport, 'test2:tester2', 'testing2'))
self.account_2 = {
k: v for (k, v) in zip(('url', 'token', 'account'), rv)}
self.replicators = Manager(
['account-replicator', 'container-replicator',
'object-replicator'])
self.updaters = Manager(['container-updater', 'object-updater'])
except BaseException:
try:
raise
finally:
try:
Manager(['all']).kill()
except Exception:
pass
info_url = "%s://%s/info" % (urlparse(self.url).scheme,
urlparse(self.url).netloc)
proxy_conn = client.http_connection(info_url)
self.cluster_info = client.get_capabilities(proxy_conn)
def tearDown(self):
Manager(['all']).kill()
def device_dir(self, server, node):
server_type, config_number = get_server_number(
(node['ip'], node['port']), self.ipport2server)
repl_server = '%s-replicator' % server_type
conf = readconf(self.configs[repl_server][config_number],
section_name=repl_server)
return os.path.join(conf['devices'], node['device'])
def storage_dir(self, server, node, part=None, policy=None):
policy = policy or self.policy
device_path = self.device_dir(server, node)
path_parts = [device_path, get_data_dir(policy)]
if part is not None:
path_parts.append(str(part))
return os.path.join(*path_parts)
def config_number(self, node):
_server_type, config_number = get_server_number(
(node['ip'], node['port']), self.ipport2server)
return config_number
def is_local_to(self, node1, node2):
"""
Return True if both ring devices are "local" to each other (on the same
"server".
"""
if self.servers_per_port:
return node1['ip'] == node2['ip']
# Without a disambiguating IP, for SAIOs, we have to assume ports
# uniquely identify "servers". SAIOs should be configured to *either*
# have unique IPs per node (e.g. 127.0.0.1, 127.0.0.2, etc.) OR unique
# ports per server (i.e. sdb1 & sdb5 would have same port numbers in
# the 8-disk EC ring).
return node1['port'] == node2['port']
def get_to_final_state(self):
# these .stop()s are probably not strictly necessary,
# but may prevent race conditions
self.replicators.stop()
self.updaters.stop()
self.replicators.once()
self.updaters.once()
self.replicators.once()
def kill_drive(self, device):
if os.path.ismount(device):
os.system('sudo umount %s' % device)
else:
renamer(device, device + "X")
def revive_drive(self, device):
disabled_name = device + "X"
if os.path.isdir(disabled_name):
renamer(disabled_name, device)
else:
os.system('sudo mount %s' % device)
def make_internal_client(self):
tempdir = mkdtemp()
try:
conf_path = os.path.join(tempdir, 'internal_client.conf')
conf_body = """
[DEFAULT]
swift_dir = /etc/swift
[pipeline:main]
pipeline = catch_errors cache copy proxy-server
[app:proxy-server]
use = egg:swift#proxy
[filter:copy]
use = egg:swift#copy
[filter:cache]
use = egg:swift#memcache
[filter:catch_errors]
use = egg:swift#catch_errors
"""
with open(conf_path, 'w') as f:
f.write(dedent(conf_body))
return internal_client.InternalClient(conf_path, 'test', 1)
finally:
shutil.rmtree(tempdir)
def get_all_object_nodes(self):
"""
Returns a list of all nodes in all object storage policies.
:return: a list of node dicts.
"""
all_obj_nodes = {}
for policy in ENABLED_POLICIES:
for dev in policy.object_ring.devs:
all_obj_nodes[dev['device']] = dev
return all_obj_nodes.values()
def gather_async_pendings(self, onodes):
"""
Returns a list of paths to async pending files found on given nodes.
:param onodes: a list of nodes.
:return: a list of file paths.
"""
async_pendings = []
for onode in onodes:
device_dir = self.device_dir('', onode)
for ap_pol_dir in os.listdir(device_dir):
if not ap_pol_dir.startswith('async_pending'):
# skip 'objects', 'containers', etc.
continue
async_pending_dir = os.path.join(device_dir, ap_pol_dir)
try:
ap_dirs = os.listdir(async_pending_dir)
except OSError as err:
if err.errno == errno.ENOENT:
pass
else:
raise
else:
for ap_dir in ap_dirs:
ap_dir_fullpath = os.path.join(
async_pending_dir, ap_dir)
async_pendings.extend([
os.path.join(ap_dir_fullpath, ent)
for ent in os.listdir(ap_dir_fullpath)])
return async_pendings
class ReplProbeTest(ProbeTest):
acct_cont_required_replicas = 3
acct_cont_required_devices = 4
obj_required_replicas = 3
obj_required_devices = 4
policy_requirements = {'policy_type': REPL_POLICY}
class ECProbeTest(ProbeTest):
acct_cont_required_replicas = 3
acct_cont_required_devices = 4
obj_required_replicas = 6
obj_required_devices = 8
policy_requirements = {'policy_type': EC_POLICY}
if __name__ == "__main__":
for server in ('account', 'container'):
try:
get_ring(server, 3, 4,
force_validate=True)
except unittest.SkipTest as err:
sys.exit('%s ERROR: %s' % (server, err))
print('%s OK' % server)
for policy in POLICIES:
try:
get_ring(policy.ring_name, 3, 4,
server='object', force_validate=True)
except unittest.SkipTest as err:
sys.exit('object ERROR (%s): %s' % (policy.name, err))
print('object OK (%s)' % policy.name)