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"""
Handle osdfailsafe configuration settings (nearfull ratio and full ratio)
"""
from cStringIO import StringIO
import logging
import time
from teuthology.orchestra import run
from util.rados import rados
from teuthology import misc as teuthology
log = logging.getLogger(__name__)
def task(ctx, config):
"""
Test handling of osd_failsafe_nearfull_ratio and osd_failsafe_full_ratio
configuration settings
In order for test to pass must use log-whitelist as follows
tasks:
- chef:
- install:
- ceph:
log-whitelist: ['OSD near full', 'OSD full dropping all updates']
- osd_failsafe_enospc:
"""
if config is None:
config = {}
assert isinstance(config, dict), \
'osd_failsafe_enospc task only accepts a dict for configuration'
# Give 2 seconds for injectargs + osd_op_complaint_time (30) + 2 * osd_heartbeat_interval (6) + 6 padding
sleep_time = 50
# something that is always there
dummyfile = '/etc/fstab'
dummyfile2 = '/etc/resolv.conf'
manager = ctx.managers['ceph']
# create 1 pg pool with 1 rep which can only be on osd.0
osds = manager.get_osd_dump()
for osd in osds:
if osd['osd'] != 0:
manager.mark_out_osd(osd['osd'])
log.info('creating pool foo')
manager.create_pool("foo")
manager.raw_cluster_cmd('osd', 'pool', 'set', 'foo', 'size', '1')
# State NONE -> NEAR
log.info('1. Verify warning messages when exceeding nearfull_ratio')
first_mon = teuthology.get_first_mon(ctx, config)
(mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
proc = mon.run(
args=[
'sudo',
'daemon-helper',
'kill',
'ceph', '-w'
],
stdin=run.PIPE,
stdout=StringIO(),
wait=False,
)
manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_nearfull_ratio .00001')
time.sleep(sleep_time)
proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w
proc.wait()
lines = proc.stdout.getvalue().split('\n')
count = len(filter(lambda line: '[WRN] OSD near full' in line, lines))
assert count == 2, 'Incorrect number of warning messages expected 2 got %d' % count
count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines))
assert count == 0, 'Incorrect number of error messages expected 0 got %d' % count
# State NEAR -> FULL
log.info('2. Verify error messages when exceeding full_ratio')
proc = mon.run(
args=[
'sudo',
'daemon-helper',
'kill',
'ceph', '-w'
],
stdin=run.PIPE,
stdout=StringIO(),
wait=False,
)
manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .00001')
time.sleep(sleep_time)
proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w
proc.wait()
lines = proc.stdout.getvalue().split('\n')
count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines))
assert count == 2, 'Incorrect number of error messages expected 2 got %d' % count
log.info('3. Verify write failure when exceeding full_ratio')
# Write data should fail
ret = rados(ctx, mon, ['-p', 'foo', 'put', 'newfile1', dummyfile])
assert ret != 0, 'Expected write failure but it succeeded with exit status 0'
# Put back default
manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .97')
time.sleep(10)
# State FULL -> NEAR
log.info('4. Verify write success when NOT exceeding full_ratio')
# Write should succeed
ret = rados(ctx, mon, ['-p', 'foo', 'put', 'newfile2', dummyfile2])
assert ret == 0, 'Expected write to succeed, but got exit status %d' % ret
log.info('5. Verify warning messages again when exceeding nearfull_ratio')
proc = mon.run(
args=[
'sudo',
'daemon-helper',
'kill',
'ceph', '-w'
],
stdin=run.PIPE,
stdout=StringIO(),
wait=False,
)
time.sleep(sleep_time)
proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w
proc.wait()
lines = proc.stdout.getvalue().split('\n')
count = len(filter(lambda line: '[WRN] OSD near full' in line, lines))
assert count == 1 or count == 2, 'Incorrect number of warning messages expected 1 or 2 got %d' % count
count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines))
assert count == 0, 'Incorrect number of error messages expected 0 got %d' % count
manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_nearfull_ratio .90')
time.sleep(10)
# State NONE -> FULL
log.info('6. Verify error messages again when exceeding full_ratio')
proc = mon.run(
args=[
'sudo',
'daemon-helper',
'kill',
'ceph', '-w'
],
stdin=run.PIPE,
stdout=StringIO(),
wait=False,
)
manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .00001')
time.sleep(sleep_time)
proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w
proc.wait()
lines = proc.stdout.getvalue().split('\n')
count = len(filter(lambda line: '[WRN] OSD near full' in line, lines))
assert count == 0, 'Incorrect number of warning messages expected 0 got %d' % count
count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines))
assert count == 2, 'Incorrect number of error messages expected 2 got %d' % count
# State FULL -> NONE
log.info('7. Verify no messages settings back to default')
manager.raw_cluster_cmd('tell', 'osd.0', 'injectargs', '--osd_failsafe_full_ratio .97')
time.sleep(10)
proc = mon.run(
args=[
'sudo',
'daemon-helper',
'kill',
'ceph', '-w'
],
stdin=run.PIPE,
stdout=StringIO(),
wait=False,
)
time.sleep(sleep_time)
proc.stdin.close() # causes daemon-helper send SIGKILL to ceph -w
proc.wait()
lines = proc.stdout.getvalue().split('\n')
count = len(filter(lambda line: '[WRN] OSD near full' in line, lines))
assert count == 0, 'Incorrect number of warning messages expected 0 got %d' % count
count = len(filter(lambda line: '[ERR] OSD full dropping all updates' in line, lines))
assert count == 0, 'Incorrect number of error messages expected 0 got %d' % count
log.info('Test Passed')
# Bring all OSDs back in
manager.remove_pool("foo")
for osd in osds:
if osd['osd'] != 0:
manager.mark_in_osd(osd['osd'])
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