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"""
Resolve stuck peering
"""
import logging
import time
from teuthology import misc as teuthology
from util.rados import rados
log = logging.getLogger(__name__)
def task(ctx, config):
"""
Test handling resolve stuck peering
requires 3 osds on a single test node
"""
if config is None:
config = {}
assert isinstance(config, dict), \
'Resolve stuck peering only accepts a dict for config'
manager = ctx.managers['ceph']
while len(manager.get_osd_status()['up']) < 3:
time.sleep(10)
manager.wait_for_clean()
dummyfile = '/etc/fstab'
dummyfile1 = '/etc/resolv.conf'
#create 1 PG pool
pool='foo'
log.info('creating pool foo')
manager.raw_cluster_cmd('osd', 'pool', 'create', '%s' % pool, '1')
#set min_size of the pool to 1
#so that we can continue with I/O
#when 2 osds are down
manager.set_pool_property(pool, "min_size", 1)
osds = [0, 1, 2]
primary = manager.get_pg_primary('foo', 0)
log.info("primary osd is %d", primary)
others = list(osds)
others.remove(primary)
log.info('writing initial objects')
first_mon = teuthology.get_first_mon(ctx, config)
(mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
#create few objects
for i in range(100):
rados(ctx, mon, ['-p', 'foo', 'put', 'existing_%d' % i, dummyfile])
manager.wait_for_clean()
#kill other osds except primary
log.info('killing other osds except primary')
for i in others:
manager.kill_osd(i)
for i in others:
manager.mark_down_osd(i)
for i in range(100):
rados(ctx, mon, ['-p', 'foo', 'put', 'new_%d' % i, dummyfile1])
#kill primary osd
manager.kill_osd(primary)
manager.mark_down_osd(primary)
#revive other 2 osds
for i in others:
manager.revive_osd(i)
#make sure that pg is down
#Assuming pg number for single pg pool will start from 0
pgnum=0
pgstr = manager.get_pgid(pool, pgnum)
stats = manager.get_single_pg_stats(pgstr)
print stats['state']
timeout=60
start=time.time()
while 'down' not in stats['state']:
assert time.time() - start < timeout, \
'failed to reach down state before timeout expired'
stats = manager.get_single_pg_stats(pgstr)
#mark primary as lost
manager.raw_cluster_cmd('osd', 'lost', '%d' % primary,\
'--yes-i-really-mean-it')
#expect the pg status to be active+undersized+degraded
#pg should recover and become active+clean within timeout
stats = manager.get_single_pg_stats(pgstr)
print stats['state']
timeout=10
start=time.time()
while manager.get_num_down():
assert time.time() - start < timeout, \
'failed to recover before timeout expired'
manager.revive_osd(primary)
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