Python misc.num_instances_of_type函数代码示例

def task(ctx, config):
    """
    Test [deep] repair in several situations:
      Repair [Truncate, Data EIO, MData EIO] on [Primary|Replica]

    The config should be as follows:

      Must include the log-whitelist below
      Must enable filestore_debug_inject_read_err config

    example:

    tasks:
    - chef:
    - install:
    - ceph:
        log-whitelist: ['candidate had a read error', 'deep-scrub 0 missing, 1 inconsistent objects', 'deep-scrub 0 missing, 4 inconsistent objects', 'deep-scrub 1 errors', 'deep-scrub 4 errors', '!= known omap_digest', 'repair 0 missing, 1 inconsistent objects', 'repair 0 missing, 4 inconsistent objects', 'repair 1 errors, 1 fixed', 'repair 4 errors, 4 fixed', 'scrub 0 missing, 1 inconsistent', 'scrub 1 errors', 'size 1 != known size']
        conf:
          osd:
            filestore debug inject read err: true
    - repair_test:

    """
    if config is None:
        config = {}
    assert isinstance(config, dict), \
        'repair_test task only accepts a dict for config'

    if not hasattr(ctx, 'manager'):
        first_mon = teuthology.get_first_mon(ctx, config)
        (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
        ctx.manager = ceph_manager.CephManager(
            mon,
            ctx=ctx,
            logger=log.getChild('ceph_manager')
            )

    num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
    log.info('num_osds is %s' % num_osds)

    while len(ctx.manager.get_osd_status()['up']) < num_osds:
        time.sleep(10)

    tests = [
        gen_repair_test_1(mdataerr(ctx), choose_primary(ctx), "scrub"),
        gen_repair_test_1(mdataerr(ctx), choose_replica(ctx), "scrub"),
        gen_repair_test_1(dataerr(ctx), choose_primary(ctx), "deep-scrub"),
        gen_repair_test_1(dataerr(ctx), choose_replica(ctx), "deep-scrub"),
        gen_repair_test_1(trunc(ctx), choose_primary(ctx), "scrub"),
        gen_repair_test_1(trunc(ctx), choose_replica(ctx), "scrub"),
        gen_repair_test_2(choose_primary(ctx)),
        gen_repair_test_2(choose_replica(ctx))
        ]

    for test in tests:
        run_test(ctx, config, test)

def task(ctx, config):
    """
    Die if {testdir}/err exists or if an OSD dumps core
    """
    if config is None:
        config = {}

    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()

    num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
    log.info('num_osds is %s' % num_osds)

    manager = ceph_manager.CephManager(
        mon,
        ctx=ctx,
        logger=log.getChild('ceph_manager'),
        )

    while len(manager.get_osd_status()['up']) < num_osds:
        time.sleep(10)

    testdir = teuthology.get_testdir(ctx)

    while True:
        for i in range(num_osds):
            (osd_remote,) = ctx.cluster.only('osd.%d' % i).remotes.iterkeys()
            p = osd_remote.run(
                args = [ 'test', '-e', '{tdir}/err'.format(tdir=testdir) ],
                wait=True,
                check_status=False,
            )
            exit_status = p.exitstatus

            if exit_status == 0:
                log.info("osd %d has an error" % i)
                raise Exception("osd %d error" % i)

            log_path = '/var/log/ceph/osd.%d.log' % (i)

            p = osd_remote.run(
                args = [
                         'tail', '-1', log_path,
                         run.Raw('|'),
                         'grep', '-q', 'end dump'
                       ],
                wait=True,
                check_status=False,
            )
            exit_status = p.exitstatus

            if exit_status == 0:
                log.info("osd %d dumped core" % i)
                raise Exception("osd %d dumped core" % i)

        time.sleep(5)

def task(ctx, config):
    """
    Test [deep] scrub

    tasks:
    - chef:
    - install:
    - ceph:
        log-whitelist:
        - '!= known digest'
        - '!= known omap_digest'
        - deep-scrub 0 missing, 1 inconsistent objects
        - deep-scrub 1 errors
        - repair 0 missing, 1 inconsistent objects
        - repair 1 errors, 1 fixed
    - scrub_test:
    """
    if config is None:
        config = {}
    assert isinstance(config, dict), "scrub_test task only accepts a dict for configuration"
    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()

    num_osds = teuthology.num_instances_of_type(ctx.cluster, "osd")
    log.info("num_osds is %s" % num_osds)

    manager = ceph_manager.CephManager(mon, ctx=ctx, logger=log.getChild("ceph_manager"))

    while len(manager.get_osd_status()["up"]) < num_osds:
        time.sleep(10)

    for i in range(num_osds):
        manager.raw_cluster_cmd("tell", "osd.%d" % i, "flush_pg_stats")
    manager.wait_for_clean()

    # write some data
    p = manager.do_rados(mon, ["-p", "rbd", "bench", "--no-cleanup", "1", "write", "-b", "4096"])
    log.info("err is %d" % p.exitstatus)

    # wait for some PG to have data that we can mess with
    pg, acting = wait_for_victim_pg(manager)
    osd = acting[0]

    osd_remote, obj_path, obj_name = find_victim_object(ctx, pg, osd)
    manager.do_rados(mon, ["-p", "rbd", "setomapval", obj_name, "key", "val"])
    log.info("err is %d" % p.exitstatus)
    manager.do_rados(mon, ["-p", "rbd", "setomapheader", obj_name, "hdr"])
    log.info("err is %d" % p.exitstatus)

    log.info("messing with PG %s on osd %d" % (pg, osd))
    test_repair_corrupted_obj(ctx, manager, pg, osd_remote, obj_path, "rbd")
    test_repair_bad_omap(ctx, manager, pg, osd, obj_name)
    test_list_inconsistent_obj(ctx, manager, osd_remote, pg, acting, osd, obj_name, obj_path)
    log.info("test successful!")

def task(ctx, config):
    """
    Benchmark the recovery system.

    Generates objects with smalliobench, runs it normally to get a
    baseline performance measurement, then marks an OSD out and reruns
    to measure performance during recovery.

    The config should be as follows:

    recovery_bench:
        duration: <seconds for each measurement run>
        num_objects: <number of objects>
        io_size: <io size in bytes>

    example:

    tasks:
    - ceph:
    - recovery_bench:
        duration: 60
        num_objects: 500
        io_size: 4096
    """
    if config is None:
        config = {}
    assert isinstance(config, dict), \
        'recovery_bench task only accepts a dict for configuration'

    log.info('Beginning recovery bench...')

    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()

    manager = ceph_manager.CephManager(
        mon,
        ctx=ctx,
        logger=log.getChild('ceph_manager'),
        )

    num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
    while len(manager.get_osd_status()['up']) < num_osds:
        manager.sleep(10)

    bench_proc = RecoveryBencher(
        manager,
        config,
        )
    try:
        yield
    finally:
        log.info('joining recovery bencher')
        bench_proc.do_join()

def task(ctx, config):
    """
    Run scrub periodically. Randomly chooses an OSD to scrub.

    The config should be as follows:

    scrub:
        frequency: <seconds between scrubs>
        deep: <bool for deepness>

    example:

    tasks:
    - ceph:
    - scrub:
        frequency: 30
        deep: 0
    """
    if config is None:
        config = {}
    assert isinstance(config, dict), \
        'scrub task only accepts a dict for configuration'

    log.info('Beginning scrub...')

    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()

    manager = ceph_manager.CephManager(
        mon,
        ctx=ctx,
        logger=log.getChild('ceph_manager'),
        )

    num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
    while len(manager.get_osd_status()['up']) < num_osds:
        time.sleep(10)

    scrub_proc = Scrubber(
        manager,
        config,
        )
    try:
        yield
    finally:
        log.info('joining scrub')
        scrub_proc.do_join()

#.........这里部分代码省略.........
        remote=mon0_remote,
        path='/tmp/cephtest/ceph.keyring',
        )
    monmap = teuthology.get_file(
        remote=mon0_remote,
        path='/tmp/cephtest/monmap',
        )

    for rem in ctx.cluster.remotes.iterkeys():
        # copy mon key and initial monmap
        log.info('Sending monmap to node {remote}'.format(remote=rem))
        teuthology.write_file(
            remote=rem,
            path='/tmp/cephtest/ceph.keyring',
            data=keyring,
            )
        teuthology.write_file(
            remote=rem,
            path='/tmp/cephtest/monmap',
            data=monmap,
            )

    log.info('Setting up mon nodes...')
    mons = ctx.cluster.only(teuthology.is_type('mon'))
    run.wait(
        mons.run(
            args=[
                '/tmp/cephtest/enable-coredump',
                '/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
                coverage_dir,
                '/tmp/cephtest/binary/usr/local/bin/osdmaptool',
                '--clobber',
                '--createsimple', '{num:d}'.format(
                    num=teuthology.num_instances_of_type(ctx.cluster, 'osd'),
                    ),
                '/tmp/cephtest/osdmap',
                '--pg_bits', '2',
                '--pgp_bits', '4',
                ],
            wait=False,
            ),
        )

    log.info('Setting up osd nodes...')
    for remote, roles_for_host in osds.remotes.iteritems():
        for id_ in teuthology.roles_of_type(roles_for_host, 'osd'):
            remote.run(
                args=[
                    '/tmp/cephtest/enable-coredump',
                    '/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
                    coverage_dir,
                    '/tmp/cephtest/binary/usr/local/bin/ceph-authtool',
                    '--create-keyring',
                    '--gen-key',
                    '--name=osd.{id}'.format(id=id_),
                    '/tmp/cephtest/data/osd.{id}.keyring'.format(id=id_),
                    ],
                )

    log.info('Setting up mds nodes...')
    mdss = ctx.cluster.only(teuthology.is_type('mds'))
    for remote, roles_for_host in mdss.remotes.iteritems():
        for id_ in teuthology.roles_of_type(roles_for_host, 'mds'):
            remote.run(
                args=[
                    '/tmp/cephtest/enable-coredump',

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.iterkeys()

    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.iterkeys()

    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()

#.........这里部分代码省略.........
        )
    monmap = teuthology.get_file(
        remote=mon0_remote,
        path='{tdir}/monmap'.format(tdir=testdir),
        )

    for rem in ctx.cluster.remotes.iterkeys():
        # copy mon key and initial monmap
        log.info('Sending monmap to node {remote}'.format(remote=rem))
        teuthology.sudo_write_file(
            remote=rem,
            path=keyring_path,
            data=keyring,
            perms='0644'
            )
        teuthology.write_file(
            remote=rem,
            path='{tdir}/monmap'.format(tdir=testdir),
            data=monmap,
            )

    log.info('Setting up mon nodes...')
    mons = ctx.cluster.only(teuthology.is_type('mon'))
    run.wait(
        mons.run(
            args=[
                'adjust-ulimits',
                'ceph-coverage',
                coverage_dir,
                'osdmaptool',
                '-c', conf_path,
                '--clobber',
                '--createsimple', '{num:d}'.format(
                    num=teuthology.num_instances_of_type(ctx.cluster, 'osd'),
                    ),
                '{tdir}/osdmap'.format(tdir=testdir),
                '--pg_bits', '2',
                '--pgp_bits', '4',
                ],
            wait=False,
            ),
        )

    log.info('Setting up mds nodes...')
    mdss = ctx.cluster.only(teuthology.is_type('mds'))
    for remote, roles_for_host in mdss.remotes.iteritems():
        for id_ in teuthology.roles_of_type(roles_for_host, 'mds'):
            remote.run(
                args=[
                    'sudo',
                    'mkdir',
                    '-p',
                    '/var/lib/ceph/mds/ceph-{id}'.format(id=id_),
                    run.Raw('&&'),
                    'sudo',
                    'adjust-ulimits',
                    'ceph-coverage',
                    coverage_dir,
                    'ceph-authtool',
                    '--create-keyring',
                    '--gen-key',
                    '--name=mds.{id}'.format(id=id_),
                    '/var/lib/ceph/mds/ceph-{id}/keyring'.format(id=id_),
                    ],
                )

def task(ctx, config):
    """
    Test backfill
    """
    if config is None:
        config = {}
    assert isinstance(config, dict), \
        'thrashosds task only accepts a dict for configuration'
    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()

    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.raw_cluster_cmd('tell', 'osd.0', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.2', 'flush_pg_stats')
    manager.wait_for_clean()

    # write some data
    p = rados_start(ctx, mon, ['-p', 'rbd', 'bench', '15', 'write', '-b', '4096',
                          '--no-cleanup'])
    err = p.wait()
    log.info('err is %d' % err)

    # mark osd.0 out to trigger a rebalance/backfill
    manager.mark_out_osd(0)

    # also mark it down to it won't be included in pg_temps
    manager.kill_osd(0)
    manager.mark_down_osd(0)

    # wait for everything to peer and be happy...
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.2', 'flush_pg_stats')
    manager.wait_for_recovery()

    # write some new data
    p = rados_start(ctx, mon, ['-p', 'rbd', 'bench', '30', 'write', '-b', '4096',
                          '--no-cleanup'])

    time.sleep(15)

    # blackhole + restart osd.1
    # this triggers a divergent backfill target
    manager.blackhole_kill_osd(1)
    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 recover
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.2', 'flush_pg_stats')
    manager.wait_for_recovery()

    # re-add osd.0
    manager.revive_osd(0)
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.2', 'flush_pg_stats')
    manager.wait_for_clean()

def task(ctx, config):
    """
    Test [deep] scrub
    """
    if config is None:
        config = {}
    assert isinstance(config, dict), \
        'scrub_test task only accepts a dict for configuration'
    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
    
    num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
    log.info('num_osds is %s' % num_osds)

    manager = ceph_manager.CephManager(
        mon,
        ctx=ctx,
        logger=log.getChild('ceph_manager'),
        )

    while len(manager.get_osd_status()['up']) < num_osds:
        time.sleep(10)

    for i in range(num_osds):
        manager.raw_cluster_cmd('tell', 'osd.%d' % i, 'flush_pg_stats')
    manager.wait_for_clean()

    # write some data
    p = rados_start(mon, ['-p', 'rbd', 'bench', '1', 'write', '-b', '4096'])
    err = p.exitstatus
    log.info('err is %d' % err)

    # wait for some PG to have data that we can mess with
    victim = None
    osd = None
    while victim is None:
        stats = manager.get_pg_stats()
        for pg in stats:
            size = pg['stat_sum']['num_bytes']
            if size > 0:
                victim = pg['pgid']
                osd = pg['acting'][0]
                break

        if victim is None:
            time.sleep(3)

    log.info('messing with PG %s on osd %d' % (victim, osd))


    (osd_remote,) = ctx.cluster.only('osd.%d' % osd).remotes.iterkeys()
    data_path = os.path.join('/tmp/cephtest/data',
                             'osd.{id}.data'.format(id=osd),
                             'current',
                             '{pg}_head'.format(pg=victim)
                            )


    # fuzz time
    ls_fp = StringIO()
    osd_remote.run(
        args=[ 'ls', data_path ],
        stdout=ls_fp,
    )
    ls_out = ls_fp.getvalue()
    ls_fp.close()

    # find an object file we can mess with
    file = None
    for line in ls_out.split('\n'):
        if line.find('object'):
            file = line
            break
    assert file is not None

    log.info('fuzzing %s' % file)

    # put a single \0 at the beginning of the file
    osd_remote.run(
        args=[ 'dd',
               'if=/dev/zero',
               'of=%s' % os.path.join(data_path, file),
               'bs=1', 'count=1', 'conv=notrunc'
             ]
    )

    # scrub, verify inconsistent
    manager.raw_cluster_cmd('pg', 'deep-scrub', victim)

    while True:
        stats = manager.get_single_pg_stats(victim)
        state = stats['state']

        # wait for the scrub to finish
        if state.find('scrubbing'):
            time.sleep(3)
            continue

        inconsistent = stats['state'].find('+inconsistent') != -1
        assert inconsistent
#.........这里部分代码省略.........

def task(ctx, config):
    """
    Test [deep] scrub

    tasks:
    - chef:
    - install:
    - ceph:
        log-whitelist:
        - '!= known digest'
        - '!= known omap_digest'
        - deep-scrub 0 missing, 1 inconsistent objects
        - deep-scrub 1 errors
        - repair 0 missing, 1 inconsistent objects
        - repair 1 errors, 1 fixed
    - scrub_test: 
    
    """
    if config is None:
        config = {}
    assert isinstance(config, dict), \
        'scrub_test task only accepts a dict for configuration'
    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()
    
    num_osds = teuthology.num_instances_of_type(ctx.cluster, 'osd')
    log.info('num_osds is %s' % num_osds)

    manager = ceph_manager.CephManager(
        mon,
        ctx=ctx,
        logger=log.getChild('ceph_manager'),
        )

    while len(manager.get_osd_status()['up']) < num_osds:
        time.sleep(10)

    for i in range(num_osds):
        manager.raw_cluster_cmd('tell', 'osd.%d' % i, 'flush_pg_stats')
    manager.wait_for_clean()

    # write some data
    p = manager.do_rados(mon, ['-p', 'rbd', 'bench', '--no-cleanup', '1', 'write', '-b', '4096'])
    err = p.exitstatus
    log.info('err is %d' % err)

    # wait for some PG to have data that we can mess with
    victim = None
    osd = None
    while victim is None:
        stats = manager.get_pg_stats()
        for pg in stats:
            size = pg['stat_sum']['num_bytes']
            if size > 0:
                victim = pg['pgid']
                osd = pg['acting'][0]
                break

        if victim is None:
            time.sleep(3)

    log.info('messing with PG %s on osd %d' % (victim, osd))

    (osd_remote,) = ctx.cluster.only('osd.%d' % osd).remotes.iterkeys()
    data_path = os.path.join(
        '/var/lib/ceph/osd',
        'ceph-{id}'.format(id=osd),
        'current',
        '{pg}_head'.format(pg=victim)
        )

    # fuzz time
    ls_fp = StringIO()
    osd_remote.run(
        args=[ 'sudo', 'ls', data_path ],
        stdout=ls_fp,
    )
    ls_out = ls_fp.getvalue()
    ls_fp.close()

    # find an object file we can mess with
    osdfilename = None
    for line in ls_out.split('\n'):
        if 'object' in line:
            osdfilename = line
            break
    assert osdfilename is not None

    # Get actual object name from osd stored filename
    tmp=osdfilename.split('__')
    objname=tmp[0]
    objname=objname.replace('\u', '_')
    log.info('fuzzing %s' % objname)

    # put a single \0 at the beginning of the file
    osd_remote.run(
        args=[ 'sudo', 'dd',
               'if=/dev/zero',
               'of=%s' % os.path.join(data_path, osdfilename),
               'bs=1', 'count=1', 'conv=notrunc'
#.........这里部分代码省略.........

def task(ctx, config):
    """
    Test the dump_stuck command.

    The ceph configuration should include::

        mon_osd_report_timeout = 90
        mon_pg_stuck_threshold = 10
    """
    assert config is None, \
        'dump_stuck requires no configuration'
    assert teuthology.num_instances_of_type(ctx.cluster, 'osd') == 2, \
        'dump_stuck requires exactly 2 osds'

    timeout = 60
    first_mon = teuthology.get_first_mon(ctx, config)
    (mon,) = ctx.cluster.only(first_mon).remotes.iterkeys()

    manager = ceph_manager.CephManager(
        mon,
        ctx=ctx,
        logger=log.getChild('ceph_manager'),
        )

    manager.raw_cluster_cmd('tell', 'osd.0', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.wait_for_clean(timeout)

    check_stuck(
        manager,
        num_inactive=0,
        num_unclean=0,
        num_stale=0,
        )
    num_pgs = manager.get_num_pgs()

    manager.mark_out_osd(0)
    time.sleep(timeout)
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.wait_for_recovery(timeout)

    check_stuck(
        manager,
        num_inactive=0,
        num_unclean=num_pgs,
        num_stale=0,
        )

    manager.mark_in_osd(0)
    manager.raw_cluster_cmd('tell', 'osd.0', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.wait_for_clean(timeout)

    check_stuck(
        manager,
        num_inactive=0,
        num_unclean=0,
        num_stale=0,
        )

    for id_ in teuthology.all_roles_of_type(ctx.cluster, 'osd'):
        manager.kill_osd(id_)
        manager.mark_down_osd(id_)

    starttime = time.time()
    done = False
    while not done:
        try:
            check_stuck(
                manager,
                num_inactive=0,
                num_unclean=0,
                num_stale=num_pgs,
                )
            done = True
        except AssertionError:
            # wait up to 15 minutes to become stale
            if time.time() - starttime > 900:
                raise

    for id_ in teuthology.all_roles_of_type(ctx.cluster, 'osd'):
        manager.revive_osd(id_)
        manager.mark_in_osd(id_)
    time.sleep(timeout)
    manager.raw_cluster_cmd('tell', 'osd.0', 'flush_pg_stats')
    manager.raw_cluster_cmd('tell', 'osd.1', 'flush_pg_stats')
    manager.wait_for_clean(timeout)

    check_stuck(
        manager,
        num_inactive=0,
        num_unclean=0,
        num_stale=0,
        )

#.........这里部分代码省略.........
        remote=mon0_remote,
        path='/tmp/cephtest/ceph.keyring',
        )
    monmap = teuthology.get_file(
        remote=mon0_remote,
        path='/tmp/cephtest/monmap',
        )

    for rem in ctx.cluster.remotes.iterkeys():
        # copy mon key and initial monmap
        log.info('Sending monmap to node {remote}'.format(remote=rem))
        teuthology.write_file(
            remote=rem,
            path='/tmp/cephtest/ceph.keyring',
            data=keyring,
            )
        teuthology.write_file(
            remote=rem,
            path='/tmp/cephtest/monmap',
            data=monmap,
            )

    log.info('Setting up mon nodes...')
    mons = ctx.cluster.only(teuthology.is_type('mon'))
    run.wait(
        mons.run(
            args=[
                '/tmp/cephtest/enable-coredump',
                '/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
                coverage_dir,
                '/tmp/cephtest/binary/usr/local/bin/osdmaptool',
                '--clobber',
                '--createsimple', '{num:d}'.format(
                    num=teuthology.num_instances_of_type(ctx.cluster, 'osd'),
                    ),
                '/tmp/cephtest/osdmap',
                '--pg_bits', '2',
                '--pgp_bits', '4',
                ],
            wait=False,
            ),
        )

    log.info('Setting up osd nodes...')
    osds = ctx.cluster.only(teuthology.is_type('osd'))
    for remote, roles_for_host in osds.remotes.iteritems():
        for id_ in teuthology.roles_of_type(roles_for_host, 'osd'):
            remote.run(
                args=[
                    '/tmp/cephtest/enable-coredump',
                    '/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
                    coverage_dir,
                    '/tmp/cephtest/binary/usr/local/bin/ceph-authtool',
                    '--create-keyring',
                    '--gen-key',
                    '--name=osd.{id}'.format(id=id_),
                    '/tmp/cephtest/data/osd.{id}.keyring'.format(id=id_),
                    ],
                )

    log.info('Setting up mds nodes...')
    mdss = ctx.cluster.only(teuthology.is_type('mds'))
    for remote, roles_for_host in mdss.remotes.iteritems():
        for id_ in teuthology.roles_of_type(roles_for_host, 'mds'):
            remote.run(
                args=[

def task(ctx, config):
    """
    Execute a radosbench parameter sweep

    Puts radosbench in a loop, taking values from the given config at each
    iteration. If given, the min and max values below create a range, e.g.
    min_replicas=1 and max_replicas=3 implies executing with 1-3 replicas.

    Parameters:

        clients: [client list]
        time: seconds to run (default=120)
        sizes: [list of object sizes] (default=[4M])
        mode: <write|read|seq> (default=write)
        repetitions: execute the same configuration multiple times (default=1)
        min_num_replicas: minimum number of replicas to use (default = 3)
        max_num_replicas: maximum number of replicas to use (default = 3)
        min_num_osds: the minimum number of OSDs in a pool (default=all)
        max_num_osds: the maximum number of OSDs in a pool (default=all)
        file: name of CSV-formatted output file (default='radosbench.csv')
        columns: columns to include (default=all)
          - rep: execution number (takes values from 'repetitions')
          - num_osd: number of osds for pool
          - num_replica: number of replicas
          - avg_throughput: throughput
          - avg_latency: latency
          - stdev_throughput:
          - stdev_latency:

    Example:
    - radsobenchsweep:
        columns: [rep, num_osd, num_replica, avg_throughput, stdev_throughput]
    """
    log.info('Beginning radosbenchsweep...')
    assert isinstance(config, dict), 'expecting dictionary for configuration'

    # get and validate config values
    # {

    # only one client supported for now
    if len(config.get('clients', [])) != 1:
        raise Exception("Only one client can be specified")

    # only write mode
    if config.get('mode', 'write') != 'write':
        raise Exception("Only 'write' mode supported for now.")

    # OSDs
    total_osds_in_cluster = teuthology.num_instances_of_type(ctx.cluster, 'osd')
    min_num_osds = config.get('min_num_osds', total_osds_in_cluster)
    max_num_osds = config.get('max_num_osds', total_osds_in_cluster)

    if max_num_osds > total_osds_in_cluster:
        raise Exception('max_num_osds cannot be greater than total in cluster')
    if min_num_osds < 1:
        raise Exception('min_num_osds cannot be less than 1')
    if min_num_osds > max_num_osds:
        raise Exception('min_num_osds cannot be greater than max_num_osd')
    osds = range(0, (total_osds_in_cluster + 1))

    # replicas
    min_num_replicas = config.get('min_num_replicas', 3)
    max_num_replicas = config.get('max_num_replicas', 3)

    if min_num_replicas < 1:
        raise Exception('min_num_replicas cannot be less than 1')
    if min_num_replicas > max_num_replicas:
        raise Exception('min_num_replicas cannot be greater than max_replicas')
    if max_num_replicas > max_num_osds:
        raise Exception('max_num_replicas cannot be greater than max_num_osds')
    replicas = range(min_num_replicas, (max_num_replicas + 1))

    # object size
    sizes = config.get('size', [4 << 20])

    # repetitions
    reps = range(config.get('repetitions', 1))

    # file
    fname = config.get('file', 'radosbench.csv')
    f = open('{}/{}'.format(ctx.archive, fname), 'w')
    f.write(get_csv_header(config) + '\n')
    # }

    # set default pools size=1 to avoid 'unhealthy' issues
    ctx.manager.set_pool_property('data', 'size', 1)
    ctx.manager.set_pool_property('metadata', 'size', 1)
    ctx.manager.set_pool_property('rbd', 'size', 1)

    current_osds_out = 0

    # sweep through all parameters
    for osds_out, size, replica, rep in product(osds, sizes, replicas, reps):

        osds_in = total_osds_in_cluster - osds_out

        if osds_in == 0:
            # we're done
            break

#.........这里部分代码省略.........