418 lines
15 KiB
Python
418 lines
15 KiB
Python
# Copyright (c) 2010-2012 OpenStack Foundation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import os
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from subprocess import Popen, PIPE
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import sys
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from time import sleep, time
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from collections import defaultdict
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import unittest
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from nose import SkipTest
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from six.moves.http_client import HTTPConnection
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from swiftclient import get_auth, head_account
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from swift.obj.diskfile import get_data_dir
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from swift.common.ring import Ring
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from swift.common.utils import readconf, renamer
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from swift.common.manager import Manager
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from swift.common.storage_policy import POLICIES, EC_POLICY, REPL_POLICY
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from test.probe import CHECK_SERVER_TIMEOUT, VALIDATE_RSYNC
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ENABLED_POLICIES = [p for p in POLICIES if not p.is_deprecated]
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POLICIES_BY_TYPE = defaultdict(list)
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for p in POLICIES:
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POLICIES_BY_TYPE[p.policy_type].append(p)
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def get_server_number(ipport, ipport2server):
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server_number = ipport2server[ipport]
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server, number = server_number[:-1], server_number[-1:]
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try:
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number = int(number)
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except ValueError:
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# probably the proxy
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return server_number, None
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return server, number
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def start_server(ipport, ipport2server, pids, check=True):
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server, number = get_server_number(ipport, ipport2server)
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err = Manager([server]).start(number=number, wait=False)
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if err:
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raise Exception('unable to start %s' % (
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server if not number else '%s%s' % (server, number)))
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if check:
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return check_server(ipport, ipport2server, pids)
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return None
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def check_server(ipport, ipport2server, pids, timeout=CHECK_SERVER_TIMEOUT):
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server = ipport2server[ipport]
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if server[:-1] in ('account', 'container', 'object'):
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if int(server[-1]) > 4:
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return None
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path = '/connect/1/2'
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if server[:-1] == 'container':
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path += '/3'
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elif server[:-1] == 'object':
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path += '/3/4'
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try_until = time() + timeout
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while True:
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try:
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conn = HTTPConnection(*ipport)
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conn.request('GET', path)
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resp = conn.getresponse()
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# 404 because it's a nonsense path (and mount_check is false)
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# 507 in case the test target is a VM using mount_check
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if resp.status not in (404, 507):
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raise Exception(
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'Unexpected status %s' % resp.status)
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break
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except Exception as err:
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if time() > try_until:
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print(err)
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print('Giving up on %s:%s after %s seconds.' % (
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server, ipport, timeout))
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raise err
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sleep(0.1)
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else:
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try_until = time() + timeout
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while True:
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try:
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url, token = get_auth('http://%s:%d/auth/v1.0' % ipport,
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'test:tester', 'testing')
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account = url.split('/')[-1]
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head_account(url, token)
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return url, token, account
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except Exception as err:
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if time() > try_until:
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print(err)
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print('Giving up on proxy:8080 after 30 seconds.')
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raise err
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sleep(0.1)
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return None
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def kill_server(ipport, ipport2server, pids):
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server, number = get_server_number(ipport, ipport2server)
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err = Manager([server]).kill(number=number)
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if err:
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raise Exception('unable to kill %s' % (server if not number else
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'%s%s' % (server, number)))
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try_until = time() + 30
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while True:
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try:
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conn = HTTPConnection(*ipport)
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conn.request('GET', '/')
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conn.getresponse()
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except Exception as err:
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break
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if time() > try_until:
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raise Exception(
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'Still answering on %s:%s after 30 seconds' % ipport)
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sleep(0.1)
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def kill_nonprimary_server(primary_nodes, ipport2server, pids):
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primary_ipports = [(n['ip'], n['port']) for n in primary_nodes]
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for ipport, server in ipport2server.items():
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if ipport in primary_ipports:
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server_type = server[:-1]
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break
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else:
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raise Exception('Cannot figure out server type for %r' % primary_nodes)
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for ipport, server in list(ipport2server.items()):
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if server[:-1] == server_type and ipport not in primary_ipports:
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kill_server(ipport, ipport2server, pids)
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return ipport
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def add_ring_devs_to_ipport2server(ring, server_type, ipport2server,
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servers_per_port=0):
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# We'll number the servers by order of unique occurrence of:
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# IP, if servers_per_port > 0 OR there > 1 IP in ring
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# ipport, otherwise
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unique_ip_count = len(set(dev['ip'] for dev in ring.devs if dev))
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things_to_number = {}
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number = 0
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for dev in filter(None, ring.devs):
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ip = dev['ip']
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ipport = (ip, dev['port'])
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unique_by = ip if servers_per_port or unique_ip_count > 1 else ipport
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if unique_by not in things_to_number:
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number += 1
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things_to_number[unique_by] = number
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ipport2server[ipport] = '%s%d' % (server_type,
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things_to_number[unique_by])
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def store_config_paths(name, configs):
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for server_name in (name, '%s-replicator' % name):
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for server in Manager([server_name]):
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for i, conf in enumerate(server.conf_files(), 1):
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configs[server.server][i] = conf
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def get_ring(ring_name, required_replicas, required_devices,
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server=None, force_validate=None, ipport2server=None,
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config_paths=None):
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if not server:
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server = ring_name
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ring = Ring('/etc/swift', ring_name=ring_name)
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if ipport2server is None:
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ipport2server = {} # used internally, even if not passed in
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if config_paths is None:
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config_paths = defaultdict(dict)
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store_config_paths(server, config_paths)
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repl_name = '%s-replicator' % server
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repl_configs = {i: readconf(c, section_name=repl_name)
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for i, c in config_paths[repl_name].items()}
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servers_per_port = any(int(c.get('servers_per_port', '0'))
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for c in repl_configs.values())
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add_ring_devs_to_ipport2server(ring, server, ipport2server,
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servers_per_port=servers_per_port)
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if not VALIDATE_RSYNC and not force_validate:
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return ring
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# easy sanity checks
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if ring.replica_count != required_replicas:
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raise SkipTest('%s has %s replicas instead of %s' % (
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ring.serialized_path, ring.replica_count, required_replicas))
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if len(ring.devs) != required_devices:
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raise SkipTest('%s has %s devices instead of %s' % (
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ring.serialized_path, len(ring.devs), required_devices))
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for dev in ring.devs:
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# verify server is exposing mounted device
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ipport = (dev['ip'], dev['port'])
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_, server_number = get_server_number(ipport, ipport2server)
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conf = repl_configs[server_number]
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for device in os.listdir(conf['devices']):
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if device == dev['device']:
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dev_path = os.path.join(conf['devices'], device)
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full_path = os.path.realpath(dev_path)
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if not os.path.exists(full_path):
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raise SkipTest(
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'device %s in %s was not found (%s)' %
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(device, conf['devices'], full_path))
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break
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else:
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raise SkipTest(
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"unable to find ring device %s under %s's devices (%s)" % (
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dev['device'], server, conf['devices']))
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# verify server is exposing rsync device
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if conf.get('vm_test_mode', False):
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rsync_export = '%s%s' % (server, dev['replication_port'])
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else:
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rsync_export = server
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cmd = "rsync rsync://localhost/%s" % rsync_export
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p = Popen(cmd, shell=True, stdout=PIPE)
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stdout, _stderr = p.communicate()
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if p.returncode:
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raise SkipTest('unable to connect to rsync '
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'export %s (%s)' % (rsync_export, cmd))
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for line in stdout.splitlines():
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if line.rsplit(None, 1)[-1] == dev['device']:
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break
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else:
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raise SkipTest("unable to find ring device %s under rsync's "
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"exported devices for %s (%s)" %
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(dev['device'], rsync_export, cmd))
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return ring
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def get_policy(**kwargs):
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kwargs.setdefault('is_deprecated', False)
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# go through the policies and make sure they match the
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# requirements of kwargs
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for policy in POLICIES:
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# TODO: for EC, pop policy type here and check it first
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matches = True
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for key, value in kwargs.items():
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try:
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if getattr(policy, key) != value:
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matches = False
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except AttributeError:
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matches = False
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if matches:
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return policy
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raise SkipTest('No policy matching %s' % kwargs)
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def resetswift():
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p = Popen("resetswift 2>&1", shell=True, stdout=PIPE)
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stdout, _stderr = p.communicate()
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print(stdout)
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Manager(['all']).stop()
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class ProbeTest(unittest.TestCase):
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"""
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Don't instantiate this directly, use a child class instead.
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"""
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def setUp(self):
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resetswift()
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self.pids = {}
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try:
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self.ipport2server = {}
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self.configs = defaultdict(dict)
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self.account_ring = get_ring(
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'account',
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self.acct_cont_required_replicas,
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self.acct_cont_required_devices,
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ipport2server=self.ipport2server,
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config_paths=self.configs)
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self.container_ring = get_ring(
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'container',
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self.acct_cont_required_replicas,
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self.acct_cont_required_devices,
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ipport2server=self.ipport2server,
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config_paths=self.configs)
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self.policy = get_policy(**self.policy_requirements)
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self.object_ring = get_ring(
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self.policy.ring_name,
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self.obj_required_replicas,
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self.obj_required_devices,
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server='object',
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ipport2server=self.ipport2server,
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config_paths=self.configs)
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self.servers_per_port = any(
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int(readconf(c, section_name='object-replicator').get(
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'servers_per_port', '0'))
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for c in self.configs['object-replicator'].values())
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Manager(['main']).start(wait=False)
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for ipport in self.ipport2server:
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check_server(ipport, self.ipport2server, self.pids)
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proxy_ipport = ('127.0.0.1', 8080)
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self.ipport2server[proxy_ipport] = 'proxy'
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self.url, self.token, self.account = check_server(
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proxy_ipport, self.ipport2server, self.pids)
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self.replicators = Manager(
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['account-replicator', 'container-replicator',
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'object-replicator'])
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self.updaters = Manager(['container-updater', 'object-updater'])
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except BaseException:
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try:
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raise
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finally:
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try:
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Manager(['all']).kill()
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except Exception:
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pass
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def tearDown(self):
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Manager(['all']).kill()
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def device_dir(self, server, node):
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server_type, config_number = get_server_number(
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(node['ip'], node['port']), self.ipport2server)
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repl_server = '%s-replicator' % server_type
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conf = readconf(self.configs[repl_server][config_number],
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section_name=repl_server)
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return os.path.join(conf['devices'], node['device'])
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def storage_dir(self, server, node, part=None, policy=None):
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policy = policy or self.policy
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device_path = self.device_dir(server, node)
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path_parts = [device_path, get_data_dir(policy)]
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if part is not None:
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path_parts.append(str(part))
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return os.path.join(*path_parts)
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def config_number(self, node):
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_server_type, config_number = get_server_number(
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(node['ip'], node['port']), self.ipport2server)
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return config_number
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def is_local_to(self, node1, node2):
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"""
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Return True if both ring devices are "local" to each other (on the same
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"server".
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"""
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if self.servers_per_port:
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return node1['ip'] == node2['ip']
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# Without a disambiguating IP, for SAIOs, we have to assume ports
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# uniquely identify "servers". SAIOs should be configured to *either*
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# have unique IPs per node (e.g. 127.0.0.1, 127.0.0.2, etc.) OR unique
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# ports per server (i.e. sdb1 & sdb5 would have same port numbers in
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# the 8-disk EC ring).
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return node1['port'] == node2['port']
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def get_to_final_state(self):
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# these .stop()s are probably not strictly necessary,
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# but may prevent race conditions
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self.replicators.stop()
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self.updaters.stop()
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self.replicators.once()
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self.updaters.once()
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self.replicators.once()
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def kill_drive(self, device):
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if os.path.ismount(device):
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os.system('sudo umount %s' % device)
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else:
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renamer(device, device + "X")
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def revive_drive(self, device):
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disabled_name = device + "X"
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if os.path.isdir(disabled_name):
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renamer(device + "X", device)
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else:
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os.system('sudo mount %s' % device)
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class ReplProbeTest(ProbeTest):
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acct_cont_required_replicas = 3
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acct_cont_required_devices = 4
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obj_required_replicas = 3
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obj_required_devices = 4
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policy_requirements = {'policy_type': REPL_POLICY}
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class ECProbeTest(ProbeTest):
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acct_cont_required_replicas = 3
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acct_cont_required_devices = 4
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obj_required_replicas = 6
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obj_required_devices = 8
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policy_requirements = {'policy_type': EC_POLICY}
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if __name__ == "__main__":
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for server in ('account', 'container'):
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try:
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get_ring(server, 3, 4,
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force_validate=True)
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except SkipTest as err:
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sys.exit('%s ERROR: %s' % (server, err))
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print('%s OK' % server)
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for policy in POLICIES:
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try:
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get_ring(policy.ring_name, 3, 4,
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server='object', force_validate=True)
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except SkipTest as err:
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sys.exit('object ERROR (%s): %s' % (policy.name, err))
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print('object OK (%s)' % policy.name)
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