mirror of
https://github.com/ceph/ceph
synced 2024-12-21 02:42:48 +00:00
81 lines
2.2 KiB
Python
81 lines
2.2 KiB
Python
"""
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Monitor recovery
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"""
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import logging
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import ceph_manager
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from teuthology import misc as teuthology
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log = logging.getLogger(__name__)
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def task(ctx, config):
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"""
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Test monitor recovery.
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"""
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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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'task only accepts a dict for configuration'
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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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mons = [f.split('.')[1] for f in teuthology.get_mon_names(ctx)]
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log.info("mon ids = %s" % mons)
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manager.wait_for_mon_quorum_size(len(mons))
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log.info('verifying all monitors are in the quorum')
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for m in mons:
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s = manager.get_mon_status(m)
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assert s['state'] == 'leader' or s['state'] == 'peon'
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assert len(s['quorum']) == len(mons)
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log.info('restarting each monitor in turn')
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for m in mons:
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# stop a monitor
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manager.kill_mon(m)
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manager.wait_for_mon_quorum_size(len(mons) - 1)
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# restart
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manager.revive_mon(m)
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manager.wait_for_mon_quorum_size(len(mons))
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# in forward and reverse order,
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rmons = mons
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rmons.reverse()
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for mons in mons, rmons:
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log.info('stopping all monitors')
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for m in mons:
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manager.kill_mon(m)
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log.info('forming a minimal quorum for %s, then adding monitors' % mons)
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qnum = (len(mons) / 2) + 1
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num = 0
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for m in mons:
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manager.revive_mon(m)
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num += 1
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if num >= qnum:
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manager.wait_for_mon_quorum_size(num)
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# on both leader and non-leader ranks...
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for rank in [0, 1]:
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# take one out
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log.info('removing mon %s' % mons[rank])
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manager.kill_mon(mons[rank])
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manager.wait_for_mon_quorum_size(len(mons) - 1)
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log.info('causing some monitor log activity')
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m = 30
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for n in range(1, m):
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manager.raw_cluster_cmd('log', '%d of %d' % (n, m))
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log.info('adding mon %s back in' % mons[rank])
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manager.revive_mon(mons[rank])
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manager.wait_for_mon_quorum_size(len(mons))
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