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"""
Lost_unfound
"""
import logging
import time
from tasks import ceph_manager
from tasks.util.rados import rados
from teuthology import misc as teuthology
from teuthology.orchestra import run
log = logging.getLogger(__name__)
def task(ctx, config):
"""
Test handling of lost objects on an ec pool.
A pretty rigid cluster is brought up and tested by this task
"""
if config is None:
config = {}
assert isinstance(config, dict), \
'lost_unfound task only accepts a dict for configuration'
first_mon = teuthology.get_first_mon(ctx, config)
(mon,) = ctx.cluster.only(first_mon).remotes.keys()
manager = ceph_manager.CephManager(
mon,
ctx=ctx,
logger=log.getChild('ceph_manager'),
)
manager.wait_for_clean()
profile = config.get('erasure_code_profile', {
'k': '2',
'm': '2',
'crush-failure-domain': 'osd'
})
profile_name = profile.get('name', 'lost_unfound')
manager.create_erasure_code_profile(profile_name, profile)
pool = manager.create_pool_with_unique_name(
erasure_code_profile_name=profile_name,
min_size=2)
# something that is always there, readable and never empty
dummyfile = '/etc/group'
# kludge to make sure they get a map
rados(ctx, mon, ['-p', pool, 'put', 'dummy', dummyfile])
manager.flush_pg_stats([0, 1])
manager.wait_for_recovery()
# create old objects
for f in range(1, 10):
rados(ctx, mon, ['-p', pool, 'put', 'existing_%d' % f, dummyfile])
rados(ctx, mon, ['-p', pool, 'put', 'existed_%d' % f, dummyfile])
rados(ctx, mon, ['-p', pool, 'rm', 'existed_%d' % f])
# delay recovery, and make the pg log very long (to prevent backfill)
manager.raw_cluster_cmd(
'tell', 'osd.1',
'injectargs',
'--osd-recovery-delay-start 1000 --osd-min-pg-log-entries 100000000'
)
manager.kill_osd(0)
manager.mark_down_osd(0)
manager.kill_osd(3)
manager.mark_down_osd(3)
for f in range(1, 10):
rados(ctx, mon, ['-p', pool, 'put', 'new_%d' % f, dummyfile])
rados(ctx, mon, ['-p', pool, 'put', 'existed_%d' % f, dummyfile])
rados(ctx, mon, ['-p', pool, 'put', 'existing_%d' % f, dummyfile])
# take out osd.1 and a necessary shard of those objects.
manager.kill_osd(1)
manager.mark_down_osd(1)
manager.raw_cluster_cmd('osd', 'lost', '1', '--yes-i-really-mean-it')
manager.revive_osd(0)
manager.wait_till_osd_is_up(0)
manager.revive_osd(3)
manager.wait_till_osd_is_up(3)
manager.flush_pg_stats([0, 2, 3])
manager.wait_till_active()
manager.flush_pg_stats([0, 2, 3])
# verify that there are unfound objects
unfound = manager.get_num_unfound_objects()
log.info("there are %d unfound objects" % unfound)
assert unfound
testdir = teuthology.get_testdir(ctx)
procs = []
if config.get('parallel_bench', True):
procs.append(mon.run(
args=[
"/bin/sh", "-c",
" ".join(['adjust-ulimits',
'ceph-coverage',
'{tdir}/archive/coverage',
'rados',
'--no-log-to-stderr',
'--name', 'client.admin',
'-b', str(4<<10),
'-p' , pool,
'-t', '20',
'bench', '240', 'write',
]).format(tdir=testdir),
],
logger=log.getChild('radosbench.{id}'.format(id='client.admin')),
stdin=run.PIPE,
wait=False
))
time.sleep(10)
# mark stuff lost
pgs = manager.get_pg_stats()
for pg in pgs:
if pg['stat_sum']['num_objects_unfound'] > 0:
# verify that i can list them direct from the osd
log.info('listing missing/lost in %s state %s', pg['pgid'],
pg['state']);
m = manager.list_pg_unfound(pg['pgid'])
log.info('%s' % m)
assert m['num_unfound'] == pg['stat_sum']['num_objects_unfound']
log.info("reverting unfound in %s", pg['pgid'])
manager.raw_cluster_cmd('pg', pg['pgid'],
'mark_unfound_lost', 'delete')
else:
log.info("no unfound in %s", pg['pgid'])
manager.raw_cluster_cmd('tell', 'osd.0', 'debug', 'kick_recovery_wq', '5')
manager.raw_cluster_cmd('tell', 'osd.2', 'debug', 'kick_recovery_wq', '5')
manager.raw_cluster_cmd('tell', 'osd.3', 'debug', 'kick_recovery_wq', '5')
manager.flush_pg_stats([0, 2, 3])
manager.wait_for_recovery()
if not config.get('parallel_bench', True):
time.sleep(20)
# verify result
for f in range(1, 10):
err = rados(ctx, mon, ['-p', pool, 'get', 'new_%d' % f, '-'])
assert err
err = rados(ctx, mon, ['-p', pool, 'get', 'existed_%d' % f, '-'])
assert err
err = rados(ctx, mon, ['-p', pool, 'get', 'existing_%d' % f, '-'])
assert err
# see if osd.1 can cope
manager.revive_osd(1)
manager.wait_till_osd_is_up(1)
manager.wait_for_clean()
run.wait(procs)
manager.wait_for_clean()
|
