initial code repo

[stor4nfv.git] / src / ceph / qa / tasks / osd_recovery.py

diff --git a/src/ceph/qa/tasks/osd_recovery.py b/src/ceph/qa/tasks/osd_recovery.py
new file mode 100644 (file)
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+++ b/src/ceph/qa/tasks/osd_recovery.py
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+"""
+osd recovery
+"""
+import logging
+import ceph_manager
+import time
+from teuthology import misc as teuthology
+
+
+log = logging.getLogger(__name__)
+
+
+def rados_start(testdir, remote, cmd):
+    """
+    Run a remote rados command (currently used to only write data)
+    """
+    log.info("rados %s" % ' '.join(cmd))
+    pre = [
+        'adjust-ulimits',
+        'ceph-coverage',
+        '{tdir}/archive/coverage'.format(tdir=testdir),
+        'rados',
+        ];
+    pre.extend(cmd)
+    proc = remote.run(
+        args=pre,
+        wait=False,
+        )
+    return proc
+
+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()