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"""
osd recovery
"""
import logging
import time
from tasks import ceph_manager
from teuthology import misc as teuthology
log = logging.getLogger(__name__)
def rados_start(testdir, remote, cmd):
"""
Run a remote rados command (currently used to only write data)
"""
log.info("rados %s" % ' '.join(cmd))
pre = [
'adjust-ulimits',
'ceph-coverage',
'{tdir}/archive/coverage'.format(tdir=testdir),
'rados',
];
pre.extend(cmd)
proc = remote.run(
args=pre,
wait=False,
)
return proc
def task(ctx, config):
"""
Test (non-backfill) recovery
"""
if config is None:
config = {}
assert isinstance(config, dict), \
'task only accepts a dict for configuration'
testdir = teuthology.get_testdir(ctx)
first_mon = teuthology.get_first_mon(ctx, config)
(mon,) = ctx.cluster.only(first_mon).remotes.keys()
num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
log.info('num_osds is %s' % num_osds)
assert num_osds == 3
manager = ceph_manager.CephManager(
mon,
ctx=ctx,
logger=log.getChild('ceph_manager'),
)
while len(manager.get_osd_status()['up']) < 3:
time.sleep(10)
manager.flush_pg_stats([0, 1, 2])
manager.wait_for_clean()
# test some osdmap flags
manager.raw_cluster_cmd('osd', 'set', 'noin')
manager.raw_cluster_cmd('osd', 'set', 'noout')
manager.raw_cluster_cmd('osd', 'set', 'noup')
manager.raw_cluster_cmd('osd', 'set', 'nodown')
manager.raw_cluster_cmd('osd', 'unset', 'noin')
manager.raw_cluster_cmd('osd', 'unset', 'noout')
manager.raw_cluster_cmd('osd', 'unset', 'noup')
manager.raw_cluster_cmd('osd', 'unset', 'nodown')
# write some new data
p = rados_start(testdir, mon, ['-p', 'rbd', 'bench', '20', 'write', '-b', '4096',
'--no-cleanup'])
time.sleep(15)
# trigger a divergent target:
# blackhole + restart osd.1 (shorter log)
manager.blackhole_kill_osd(1)
# kill osd.2 (longer log... we'll make it divergent below)
manager.kill_osd(2)
time.sleep(2)
manager.revive_osd(1)
# wait for our writes to complete + succeed
err = p.wait()
log.info('err is %d' % err)
# cluster must repeer
manager.flush_pg_stats([0, 1])
manager.wait_for_active_or_down()
# write some more (make sure osd.2 really is divergent)
p = rados_start(testdir, mon, ['-p', 'rbd', 'bench', '15', 'write', '-b', '4096'])
p.wait()
# revive divergent osd
manager.revive_osd(2)
while len(manager.get_osd_status()['up']) < 3:
log.info('waiting a bit...')
time.sleep(2)
log.info('3 are up!')
# cluster must recover
manager.flush_pg_stats([0, 1, 2])
manager.wait_for_clean()
def test_incomplete_pgs(ctx, config):
"""
Test handling of incomplete pgs. Requires 4 osds.
"""
testdir = teuthology.get_testdir(ctx)
if config is None:
config = {}
assert isinstance(config, dict), \
'task only accepts a dict for configuration'
first_mon = teuthology.get_first_mon(ctx, config)
(mon,) = ctx.cluster.only(first_mon).remotes.keys()
num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
log.info('num_osds is %s' % num_osds)
assert num_osds == 4
manager = ceph_manager.CephManager(
mon,
ctx=ctx,
logger=log.getChild('ceph_manager'),
)
while len(manager.get_osd_status()['up']) < 4:
time.sleep(10)
manager.flush_pg_stats([0, 1, 2, 3])
manager.wait_for_clean()
log.info('Testing incomplete pgs...')
for i in range(4):
manager.set_config(
i,
osd_recovery_delay_start=1000)
# move data off of osd.0, osd.1
manager.raw_cluster_cmd('osd', 'out', '0', '1')
manager.flush_pg_stats([0, 1, 2, 3], [0, 1])
manager.wait_for_clean()
# lots of objects in rbd (no pg log, will backfill)
p = rados_start(testdir, mon,
['-p', 'rbd', 'bench', '20', 'write', '-b', '1',
'--no-cleanup'])
p.wait()
# few objects in rbd pool (with pg log, normal recovery)
for f in range(1, 20):
p = rados_start(testdir, mon, ['-p', 'rbd', 'put',
'foo.%d' % f, '/etc/passwd'])
p.wait()
# move it back
manager.raw_cluster_cmd('osd', 'in', '0', '1')
manager.raw_cluster_cmd('osd', 'out', '2', '3')
time.sleep(10)
manager.flush_pg_stats([0, 1, 2, 3], [2, 3])
time.sleep(10)
manager.wait_for_active()
assert not manager.is_clean()
assert not manager.is_recovered()
# kill 2 + 3
log.info('stopping 2,3')
manager.kill_osd(2)
manager.kill_osd(3)
log.info('...')
manager.raw_cluster_cmd('osd', 'down', '2', '3')
manager.flush_pg_stats([0, 1])
manager.wait_for_active_or_down()
assert manager.get_num_down() > 0
# revive 2 + 3
manager.revive_osd(2)
manager.revive_osd(3)
while len(manager.get_osd_status()['up']) < 4:
log.info('waiting a bit...')
time.sleep(2)
log.info('all are up!')
for i in range(4):
manager.kick_recovery_wq(i)
# cluster must recover
manager.wait_for_clean()
|
