mirror of
https://github.com/ceph/ceph
synced 2024-12-14 07:25:50 +00:00
149 lines
3.8 KiB
Python
149 lines
3.8 KiB
Python
from cStringIO import StringIO
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import logging
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import os
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import time
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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 rados_start(remote, cmd):
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log.info("rados %s" % ' '.join(cmd))
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pre = [
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'LD_LIBRARY_PATH=/tmp/cephtest/binary/usr/local/lib',
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'/tmp/cephtest/enable-coredump',
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'/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
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'/tmp/cephtest/archive/coverage',
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'/tmp/cephtest/binary/usr/local/bin/rados',
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'-c', '/tmp/cephtest/ceph.conf',
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];
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pre.extend(cmd)
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proc = remote.run(
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args=pre,
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wait=True,
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)
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return proc
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def task(ctx, config):
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"""
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Test [deep] scrub
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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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'scrub_test 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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num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
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log.info('num_osds is %s' % num_osds)
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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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while len(manager.get_osd_status()['up']) < num_osds:
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time.sleep(10)
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for i in range(num_osds):
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manager.raw_cluster_cmd('tell', 'osd.%d' % i, 'flush_pg_stats')
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manager.wait_for_clean()
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# write some data
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p = rados_start(mon, ['-p', 'rbd', 'bench', '1', 'write', '-b', '4096'])
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err = p.exitstatus
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log.info('err is %d' % err)
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# wait for some PG to have data that we can mess with
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victim = None
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osd = None
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while victim is None:
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stats = manager.get_pg_stats()
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for pg in stats:
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size = pg['stat_sum']['num_bytes']
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if size > 0:
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victim = pg['pgid']
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osd = pg['acting'][0]
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break
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if victim is None:
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time.sleep(3)
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log.info('messing with PG %s on osd %d' % (victim, osd))
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(osd_remote,) = ctx.cluster.only('osd.%d' % osd).remotes.iterkeys()
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data_path = os.path.join('/tmp/cephtest/data',
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'osd.{id}.data'.format(id=osd),
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'current',
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'{pg}_head'.format(pg=victim)
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)
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# fuzz time
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ls_fp = StringIO()
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osd_remote.run(
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args=[ 'ls', data_path ],
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stdout=ls_fp,
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)
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ls_out = ls_fp.getvalue()
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ls_fp.close()
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# find an object file we can mess with
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file = None
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for line in ls_out.split('\n'):
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if line.find('object'):
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file = line
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break
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assert file is not None
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log.info('fuzzing %s' % file)
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# put a single \0 at the beginning of the file
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osd_remote.run(
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args=[ 'dd',
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'if=/dev/zero',
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'of=%s' % os.path.join(data_path, file),
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'bs=1', 'count=1', 'conv=notrunc'
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]
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)
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# scrub, verify inconsistent
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manager.raw_cluster_cmd('pg', 'deep-scrub', victim)
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while True:
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stats = manager.get_single_pg_stats(victim)
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state = stats['state']
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# wait for the scrub to finish
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if state.find('scrubbing'):
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time.sleep(3)
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continue
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inconsistent = stats['state'].find('+inconsistent') != -1
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assert inconsistent
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break
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# repair, verify no longer inconsistent
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manager.raw_cluster_cmd('pg', 'repair', victim)
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while True:
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stats = manager.get_single_pg_stats(victim)
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state = stats['state']
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# wait for the scrub to finish
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if state.find('scrubbing'):
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time.sleep(3)
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continue
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inconsistent = stats['state'].find('+inconsistent') != -1
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assert not inconsistent
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break
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log.info('test successful!')
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