mirror of
https://github.com/ceph/ceph
synced 2024-12-17 08:57:28 +00:00
77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
"""
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Handle clock skews in monitors.
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"""
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import logging
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import contextlib
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import ceph_manager
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import time
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import gevent
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from StringIO import StringIO
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from teuthology import misc as teuthology
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log = logging.getLogger(__name__)
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class ClockSkewCheck:
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"""
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Check if there are any clock skews among the monitors in the
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quorum.
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This task accepts the following options:
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interval amount of seconds to wait before check. (default: 30.0)
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expect-skew 'true' or 'false', to indicate whether to expect a skew during
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the run or not. If 'true', the test will fail if no skew is
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found, and succeed if a skew is indeed found; if 'false', it's
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the other way around. (default: false)
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- mon_clock_skew_check:
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expect-skew: true
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"""
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def __init__(self, ctx, manager, config, logger):
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self.ctx = ctx
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self.manager = manager
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self.stopping = False
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self.logger = logger
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self.config = config
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if self.config is None:
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self.config = dict()
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def task(ctx, config):
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if config is None:
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config = {}
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assert isinstance(config, dict), \
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'mon_clock_skew_check task only accepts a dict for configuration'
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interval = float(config.get('interval', 30.0))
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expect_skew = config.get('expect-skew', False)
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log.info('Beginning mon_clock_skew_check...')
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first_mon = teuthology.get_first_mon(ctx, config)
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(mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
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manager = ceph_manager.CephManager(
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mon,
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ctx=ctx,
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logger=log.getChild('ceph_manager'),
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)
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quorum_size = len(teuthology.get_mon_names(ctx))
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manager.wait_for_mon_quorum_size(quorum_size)
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# wait a bit
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log.info('sleeping for {s} seconds'.format(
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s=interval))
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time.sleep(interval)
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health = manager.get_mon_health(True)
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log.info('got health %s' % health)
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if expect_skew:
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if 'MON_CLOCK_SKEW' not in health['checks']:
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raise RuntimeError('expected MON_CLOCK_SKEW but got none')
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else:
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if 'MON_CLOCK_SKEW' in health['checks']:
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raise RuntimeError('got MON_CLOCK_SKEW but expected none')
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