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Diffstat (limited to 'src/ceph/qa/tasks/cephfs/test_failover.py')
| -rw-r--r-- | src/ceph/qa/tasks/cephfs/test_failover.py | 645 |
1 files changed, 645 insertions, 0 deletions
diff --git a/src/ceph/qa/tasks/cephfs/test_failover.py b/src/ceph/qa/tasks/cephfs/test_failover.py new file mode 100644 index 0000000..9d3392c --- /dev/null +++ b/src/ceph/qa/tasks/cephfs/test_failover.py @@ -0,0 +1,645 @@ +import json +import logging +from unittest import case, SkipTest + +from cephfs_test_case import CephFSTestCase +from teuthology.exceptions import CommandFailedError +from teuthology import misc as teuthology +from tasks.cephfs.fuse_mount import FuseMount + +log = logging.getLogger(__name__) + + +class TestFailover(CephFSTestCase): + CLIENTS_REQUIRED = 1 + MDSS_REQUIRED = 2 + + def test_simple(self): + """ + That when the active MDS is killed, a standby MDS is promoted into + its rank after the grace period. + + This is just a simple unit test, the harder cases are covered + in thrashing tests. + """ + + # Need all my standbys up as well as the active daemons + self.wait_for_daemon_start() + + (original_active, ) = self.fs.get_active_names() + original_standbys = self.mds_cluster.get_standby_daemons() + + # Kill the rank 0 daemon's physical process + self.fs.mds_stop(original_active) + + grace = float(self.fs.get_config("mds_beacon_grace", service_type="mon")) + + # Wait until the monitor promotes his replacement + def promoted(): + active = self.fs.get_active_names() + return active and active[0] in original_standbys + + log.info("Waiting for promotion of one of the original standbys {0}".format( + original_standbys)) + self.wait_until_true( + promoted, + timeout=grace*2) + + # Start the original rank 0 daemon up again, see that he becomes a standby + self.fs.mds_restart(original_active) + self.wait_until_true( + lambda: original_active in self.mds_cluster.get_standby_daemons(), + timeout=60 # Approximately long enough for MDS to start and mon to notice + ) + + def test_client_abort(self): + """ + That a client will respect fuse_require_active_mds and error out + when the cluster appears to be unavailable. + """ + + if not isinstance(self.mount_a, FuseMount): + raise SkipTest("Requires FUSE client to inject client metadata") + + require_active = self.fs.get_config("fuse_require_active_mds", service_type="mon").lower() == "true" + if not require_active: + raise case.SkipTest("fuse_require_active_mds is not set") + + grace = float(self.fs.get_config("mds_beacon_grace", service_type="mon")) + + # Check it's not laggy to begin with + (original_active, ) = self.fs.get_active_names() + self.assertNotIn("laggy_since", self.fs.mon_manager.get_mds_status(original_active)) + + self.mounts[0].umount_wait() + + # Control: that we can mount and unmount usually, while the cluster is healthy + self.mounts[0].mount() + self.mounts[0].wait_until_mounted() + self.mounts[0].umount_wait() + + # Stop the daemon processes + self.fs.mds_stop() + + # Wait for everyone to go laggy + def laggy(): + mdsmap = self.fs.get_mds_map() + for info in mdsmap['info'].values(): + if "laggy_since" not in info: + return False + + return True + + self.wait_until_true(laggy, grace * 2) + with self.assertRaises(CommandFailedError): + self.mounts[0].mount() + + def test_standby_count_wanted(self): + """ + That cluster health warnings are generated by insufficient standbys available. + """ + + # Need all my standbys up as well as the active daemons + self.wait_for_daemon_start() + + grace = float(self.fs.get_config("mds_beacon_grace", service_type="mon")) + + standbys = self.mds_cluster.get_standby_daemons() + self.assertGreaterEqual(len(standbys), 1) + self.fs.mon_manager.raw_cluster_cmd('fs', 'set', self.fs.name, 'standby_count_wanted', str(len(standbys))) + + # Kill a standby and check for warning + victim = standbys.pop() + self.fs.mds_stop(victim) + log.info("waiting for insufficient standby daemon warning") + self.wait_for_health("MDS_INSUFFICIENT_STANDBY", grace*2) + + # restart the standby, see that he becomes a standby, check health clears + self.fs.mds_restart(victim) + self.wait_until_true( + lambda: victim in self.mds_cluster.get_standby_daemons(), + timeout=60 # Approximately long enough for MDS to start and mon to notice + ) + self.wait_for_health_clear(timeout=30) + + # Set it one greater than standbys ever seen + standbys = self.mds_cluster.get_standby_daemons() + self.assertGreaterEqual(len(standbys), 1) + self.fs.mon_manager.raw_cluster_cmd('fs', 'set', self.fs.name, 'standby_count_wanted', str(len(standbys)+1)) + log.info("waiting for insufficient standby daemon warning") + self.wait_for_health("MDS_INSUFFICIENT_STANDBY", grace*2) + + # Set it to 0 + self.fs.mon_manager.raw_cluster_cmd('fs', 'set', self.fs.name, 'standby_count_wanted', '0') + self.wait_for_health_clear(timeout=30) + + + + +class TestStandbyReplay(CephFSTestCase): + MDSS_REQUIRED = 4 + REQUIRE_FILESYSTEM = False + + def set_standby_for(self, leader, follower, replay): + self.set_conf("mds.{0}".format(follower), "mds_standby_for_name", leader) + if replay: + self.set_conf("mds.{0}".format(follower), "mds_standby_replay", "true") + + def get_info_by_name(self, mds_name): + status = self.mds_cluster.status() + info = status.get_mds(mds_name) + if info is None: + log.warn(str(status)) + raise RuntimeError("MDS '{0}' not found".format(mds_name)) + else: + return info + + def test_standby_replay_unused(self): + # Pick out exactly 3 daemons to be run during test + use_daemons = sorted(self.mds_cluster.mds_ids[0:3]) + mds_a, mds_b, mds_c = use_daemons + log.info("Using MDS daemons: {0}".format(use_daemons)) + + # B and C should both follow A, but only one will + # really get into standby replay state. + self.set_standby_for(mds_a, mds_b, True) + self.set_standby_for(mds_a, mds_c, True) + + # Create FS and start A + fs_a = self.mds_cluster.newfs("alpha") + self.mds_cluster.mds_restart(mds_a) + fs_a.wait_for_daemons() + self.assertEqual(fs_a.get_active_names(), [mds_a]) + + # Start B, he should go into standby replay + self.mds_cluster.mds_restart(mds_b) + self.wait_for_daemon_start([mds_b]) + info_b = self.get_info_by_name(mds_b) + self.assertEqual(info_b['state'], "up:standby-replay") + self.assertEqual(info_b['standby_for_name'], mds_a) + self.assertEqual(info_b['rank'], 0) + + # Start C, he should go into standby (*not* replay) + self.mds_cluster.mds_restart(mds_c) + self.wait_for_daemon_start([mds_c]) + info_c = self.get_info_by_name(mds_c) + self.assertEqual(info_c['state'], "up:standby") + self.assertEqual(info_c['standby_for_name'], mds_a) + self.assertEqual(info_c['rank'], -1) + + # Kill B, C should go into standby replay + self.mds_cluster.mds_stop(mds_b) + self.mds_cluster.mds_fail(mds_b) + self.wait_until_equal( + lambda: self.get_info_by_name(mds_c)['state'], + "up:standby-replay", + 60) + info_c = self.get_info_by_name(mds_c) + self.assertEqual(info_c['state'], "up:standby-replay") + self.assertEqual(info_c['standby_for_name'], mds_a) + self.assertEqual(info_c['rank'], 0) + + def test_standby_failure(self): + """ + That the failure of a standby-replay daemon happens cleanly + and doesn't interrupt anything else. + """ + # Pick out exactly 2 daemons to be run during test + use_daemons = sorted(self.mds_cluster.mds_ids[0:2]) + mds_a, mds_b = use_daemons + log.info("Using MDS daemons: {0}".format(use_daemons)) + + # Configure two pairs of MDSs that are standby for each other + self.set_standby_for(mds_a, mds_b, True) + self.set_standby_for(mds_b, mds_a, False) + + # Create FS alpha and get mds_a to come up as active + fs_a = self.mds_cluster.newfs("alpha") + self.mds_cluster.mds_restart(mds_a) + fs_a.wait_for_daemons() + self.assertEqual(fs_a.get_active_names(), [mds_a]) + + # Start the standbys + self.mds_cluster.mds_restart(mds_b) + self.wait_for_daemon_start([mds_b]) + + # See the standby come up as the correct rank + info_b = self.get_info_by_name(mds_b) + self.assertEqual(info_b['state'], "up:standby-replay") + self.assertEqual(info_b['standby_for_name'], mds_a) + self.assertEqual(info_b['rank'], 0) + + # Kill the standby + self.mds_cluster.mds_stop(mds_b) + self.mds_cluster.mds_fail(mds_b) + + # See that the standby is gone and the active remains + self.assertEqual(fs_a.get_active_names(), [mds_a]) + mds_map = fs_a.get_mds_map() + self.assertEqual(len(mds_map['info']), 1) + self.assertEqual(mds_map['failed'], []) + self.assertEqual(mds_map['damaged'], []) + self.assertEqual(mds_map['stopped'], []) + + def test_rank_stopped(self): + """ + That when a rank is STOPPED, standby replays for + that rank get torn down + """ + # Pick out exactly 2 daemons to be run during test + use_daemons = sorted(self.mds_cluster.mds_ids[0:4]) + mds_a, mds_b, mds_a_s, mds_b_s = use_daemons + log.info("Using MDS daemons: {0}".format(use_daemons)) + + # a and b both get a standby + self.set_standby_for(mds_a, mds_a_s, True) + self.set_standby_for(mds_b, mds_b_s, True) + + # Create FS alpha and get mds_a to come up as active + fs_a = self.mds_cluster.newfs("alpha") + fs_a.set_max_mds(2) + + self.mds_cluster.mds_restart(mds_a) + self.wait_until_equal(lambda: fs_a.get_active_names(), [mds_a], 30) + self.mds_cluster.mds_restart(mds_b) + fs_a.wait_for_daemons() + self.assertEqual(sorted(fs_a.get_active_names()), [mds_a, mds_b]) + + # Start the standbys + self.mds_cluster.mds_restart(mds_b_s) + self.wait_for_daemon_start([mds_b_s]) + self.mds_cluster.mds_restart(mds_a_s) + self.wait_for_daemon_start([mds_a_s]) + info_b_s = self.get_info_by_name(mds_b_s) + self.assertEqual(info_b_s['state'], "up:standby-replay") + info_a_s = self.get_info_by_name(mds_a_s) + self.assertEqual(info_a_s['state'], "up:standby-replay") + + # Shrink the cluster + fs_a.set_max_mds(1) + fs_a.mon_manager.raw_cluster_cmd("mds", "stop", "{0}:1".format(fs_a.name)) + self.wait_until_equal( + lambda: fs_a.get_active_names(), [mds_a], + 60 + ) + + # Both 'b' and 'b_s' should go back to being standbys + self.wait_until_equal( + lambda: self.mds_cluster.get_standby_daemons(), {mds_b, mds_b_s}, + 60 + ) + + +class TestMultiFilesystems(CephFSTestCase): + CLIENTS_REQUIRED = 2 + MDSS_REQUIRED = 4 + + # We'll create our own filesystems and start our own daemons + REQUIRE_FILESYSTEM = False + + def setUp(self): + super(TestMultiFilesystems, self).setUp() + self.mds_cluster.mon_manager.raw_cluster_cmd("fs", "flag", "set", + "enable_multiple", "true", + "--yes-i-really-mean-it") + + def _setup_two(self): + fs_a = self.mds_cluster.newfs("alpha") + fs_b = self.mds_cluster.newfs("bravo") + + self.mds_cluster.mds_restart() + + # Wait for both filesystems to go healthy + fs_a.wait_for_daemons() + fs_b.wait_for_daemons() + + # Reconfigure client auth caps + for mount in self.mounts: + self.mds_cluster.mon_manager.raw_cluster_cmd_result( + 'auth', 'caps', "client.{0}".format(mount.client_id), + 'mds', 'allow', + 'mon', 'allow r', + 'osd', 'allow rw pool={0}, allow rw pool={1}'.format( + fs_a.get_data_pool_name(), fs_b.get_data_pool_name())) + + return fs_a, fs_b + + def test_clients(self): + fs_a, fs_b = self._setup_two() + + # Mount a client on fs_a + self.mount_a.mount(mount_fs_name=fs_a.name) + self.mount_a.write_n_mb("pad.bin", 1) + self.mount_a.write_n_mb("test.bin", 2) + a_created_ino = self.mount_a.path_to_ino("test.bin") + self.mount_a.create_files() + + # Mount a client on fs_b + self.mount_b.mount(mount_fs_name=fs_b.name) + self.mount_b.write_n_mb("test.bin", 1) + b_created_ino = self.mount_b.path_to_ino("test.bin") + self.mount_b.create_files() + + # Check that a non-default filesystem mount survives an MDS + # failover (i.e. that map subscription is continuous, not + # just the first time), reproduces #16022 + old_fs_b_mds = fs_b.get_active_names()[0] + self.mds_cluster.mds_stop(old_fs_b_mds) + self.mds_cluster.mds_fail(old_fs_b_mds) + fs_b.wait_for_daemons() + background = self.mount_b.write_background() + # Raise exception if the write doesn't finish (i.e. if client + # has not kept up with MDS failure) + try: + self.wait_until_true(lambda: background.finished, timeout=30) + except RuntimeError: + # The mount is stuck, we'll have to force it to fail cleanly + background.stdin.close() + self.mount_b.umount_wait(force=True) + raise + + self.mount_a.umount_wait() + self.mount_b.umount_wait() + + # See that the client's files went into the correct pool + self.assertTrue(fs_a.data_objects_present(a_created_ino, 1024 * 1024)) + self.assertTrue(fs_b.data_objects_present(b_created_ino, 1024 * 1024)) + + def test_standby(self): + fs_a, fs_b = self._setup_two() + + # Assert that the remaining two MDS daemons are now standbys + a_daemons = fs_a.get_active_names() + b_daemons = fs_b.get_active_names() + self.assertEqual(len(a_daemons), 1) + self.assertEqual(len(b_daemons), 1) + original_a = a_daemons[0] + original_b = b_daemons[0] + expect_standby_daemons = set(self.mds_cluster.mds_ids) - (set(a_daemons) | set(b_daemons)) + + # Need all my standbys up as well as the active daemons + self.wait_for_daemon_start() + self.assertEqual(expect_standby_daemons, self.mds_cluster.get_standby_daemons()) + + # Kill fs_a's active MDS, see a standby take over + self.mds_cluster.mds_stop(original_a) + self.mds_cluster.mon_manager.raw_cluster_cmd("mds", "fail", original_a) + self.wait_until_equal(lambda: len(fs_a.get_active_names()), 1, 30, + reject_fn=lambda v: v > 1) + # Assert that it's a *different* daemon that has now appeared in the map for fs_a + self.assertNotEqual(fs_a.get_active_names()[0], original_a) + + # Kill fs_b's active MDS, see a standby take over + self.mds_cluster.mds_stop(original_b) + self.mds_cluster.mon_manager.raw_cluster_cmd("mds", "fail", original_b) + self.wait_until_equal(lambda: len(fs_b.get_active_names()), 1, 30, + reject_fn=lambda v: v > 1) + # Assert that it's a *different* daemon that has now appeared in the map for fs_a + self.assertNotEqual(fs_b.get_active_names()[0], original_b) + + # Both of the original active daemons should be gone, and all standbys used up + self.assertEqual(self.mds_cluster.get_standby_daemons(), set()) + + # Restart the ones I killed, see them reappear as standbys + self.mds_cluster.mds_restart(original_a) + self.mds_cluster.mds_restart(original_b) + self.wait_until_true( + lambda: {original_a, original_b} == self.mds_cluster.get_standby_daemons(), + timeout=30 + ) + + def test_grow_shrink(self): + # Usual setup... + fs_a, fs_b = self._setup_two() + + # Increase max_mds on fs_b, see a standby take up the role + fs_b.set_max_mds(2) + self.wait_until_equal(lambda: len(fs_b.get_active_names()), 2, 30, + reject_fn=lambda v: v > 2 or v < 1) + + # Increase max_mds on fs_a, see a standby take up the role + fs_a.set_max_mds(2) + self.wait_until_equal(lambda: len(fs_a.get_active_names()), 2, 30, + reject_fn=lambda v: v > 2 or v < 1) + + # Shrink fs_b back to 1, see a daemon go back to standby + fs_b.set_max_mds(1) + fs_b.deactivate(1) + self.wait_until_equal(lambda: len(fs_b.get_active_names()), 1, 30, + reject_fn=lambda v: v > 2 or v < 1) + + # Grow fs_a up to 3, see the former fs_b daemon join it. + fs_a.set_max_mds(3) + self.wait_until_equal(lambda: len(fs_a.get_active_names()), 3, 60, + reject_fn=lambda v: v > 3 or v < 2) + + def test_standby_for_name(self): + # Pick out exactly 4 daemons to be run during test + use_daemons = sorted(self.mds_cluster.mds_ids[0:4]) + mds_a, mds_b, mds_c, mds_d = use_daemons + log.info("Using MDS daemons: {0}".format(use_daemons)) + + def set_standby_for(leader, follower, replay): + self.set_conf("mds.{0}".format(follower), "mds_standby_for_name", leader) + if replay: + self.set_conf("mds.{0}".format(follower), "mds_standby_replay", "true") + + # Configure two pairs of MDSs that are standby for each other + set_standby_for(mds_a, mds_b, True) + set_standby_for(mds_b, mds_a, False) + set_standby_for(mds_c, mds_d, True) + set_standby_for(mds_d, mds_c, False) + + # Create FS alpha and get mds_a to come up as active + fs_a = self.mds_cluster.newfs("alpha") + self.mds_cluster.mds_restart(mds_a) + fs_a.wait_for_daemons() + self.assertEqual(fs_a.get_active_names(), [mds_a]) + + # Create FS bravo and get mds_c to come up as active + fs_b = self.mds_cluster.newfs("bravo") + self.mds_cluster.mds_restart(mds_c) + fs_b.wait_for_daemons() + self.assertEqual(fs_b.get_active_names(), [mds_c]) + + # Start the standbys + self.mds_cluster.mds_restart(mds_b) + self.mds_cluster.mds_restart(mds_d) + self.wait_for_daemon_start([mds_b, mds_d]) + + def get_info_by_name(fs, mds_name): + mds_map = fs.get_mds_map() + for gid_str, info in mds_map['info'].items(): + if info['name'] == mds_name: + return info + + log.warn(json.dumps(mds_map, indent=2)) + raise RuntimeError("MDS '{0}' not found in filesystem MDSMap".format(mds_name)) + + # See both standbys come up as standby replay for the correct ranks + # mds_b should be in filesystem alpha following mds_a + info_b = get_info_by_name(fs_a, mds_b) + self.assertEqual(info_b['state'], "up:standby-replay") + self.assertEqual(info_b['standby_for_name'], mds_a) + self.assertEqual(info_b['rank'], 0) + # mds_d should be in filesystem alpha following mds_c + info_d = get_info_by_name(fs_b, mds_d) + self.assertEqual(info_d['state'], "up:standby-replay") + self.assertEqual(info_d['standby_for_name'], mds_c) + self.assertEqual(info_d['rank'], 0) + + # Kill both active daemons + self.mds_cluster.mds_stop(mds_a) + self.mds_cluster.mds_fail(mds_a) + self.mds_cluster.mds_stop(mds_c) + self.mds_cluster.mds_fail(mds_c) + + # Wait for standbys to take over + fs_a.wait_for_daemons() + self.assertEqual(fs_a.get_active_names(), [mds_b]) + fs_b.wait_for_daemons() + self.assertEqual(fs_b.get_active_names(), [mds_d]) + + # Start the original active daemons up again + self.mds_cluster.mds_restart(mds_a) + self.mds_cluster.mds_restart(mds_c) + self.wait_for_daemon_start([mds_a, mds_c]) + + self.assertEqual(set(self.mds_cluster.get_standby_daemons()), + {mds_a, mds_c}) + + def test_standby_for_rank(self): + use_daemons = sorted(self.mds_cluster.mds_ids[0:4]) + mds_a, mds_b, mds_c, mds_d = use_daemons + log.info("Using MDS daemons: {0}".format(use_daemons)) + + def set_standby_for(leader_rank, leader_fs, follower_id): + self.set_conf("mds.{0}".format(follower_id), + "mds_standby_for_rank", leader_rank) + + fscid = leader_fs.get_namespace_id() + self.set_conf("mds.{0}".format(follower_id), + "mds_standby_for_fscid", fscid) + + fs_a = self.mds_cluster.newfs("alpha") + fs_b = self.mds_cluster.newfs("bravo") + set_standby_for(0, fs_a, mds_a) + set_standby_for(0, fs_a, mds_b) + set_standby_for(0, fs_b, mds_c) + set_standby_for(0, fs_b, mds_d) + + self.mds_cluster.mds_restart(mds_a) + fs_a.wait_for_daemons() + self.assertEqual(fs_a.get_active_names(), [mds_a]) + + self.mds_cluster.mds_restart(mds_c) + fs_b.wait_for_daemons() + self.assertEqual(fs_b.get_active_names(), [mds_c]) + + self.mds_cluster.mds_restart(mds_b) + self.mds_cluster.mds_restart(mds_d) + self.wait_for_daemon_start([mds_b, mds_d]) + + self.mds_cluster.mds_stop(mds_a) + self.mds_cluster.mds_fail(mds_a) + self.mds_cluster.mds_stop(mds_c) + self.mds_cluster.mds_fail(mds_c) + + fs_a.wait_for_daemons() + self.assertEqual(fs_a.get_active_names(), [mds_b]) + fs_b.wait_for_daemons() + self.assertEqual(fs_b.get_active_names(), [mds_d]) + + def test_standby_for_fscid(self): + """ + That I can set a standby FSCID with no rank, and the result is + that daemons join any rank for that filesystem. + """ + use_daemons = sorted(self.mds_cluster.mds_ids[0:4]) + mds_a, mds_b, mds_c, mds_d = use_daemons + + log.info("Using MDS daemons: {0}".format(use_daemons)) + + def set_standby_for(leader_fs, follower_id): + fscid = leader_fs.get_namespace_id() + self.set_conf("mds.{0}".format(follower_id), + "mds_standby_for_fscid", fscid) + + # Create two filesystems which should have two ranks each + fs_a = self.mds_cluster.newfs("alpha") + + fs_b = self.mds_cluster.newfs("bravo") + + fs_a.set_max_mds(2) + fs_b.set_max_mds(2) + + # Set all the daemons to have a FSCID assignment but no other + # standby preferences. + set_standby_for(fs_a, mds_a) + set_standby_for(fs_a, mds_b) + set_standby_for(fs_b, mds_c) + set_standby_for(fs_b, mds_d) + + # Now when we start all daemons at once, they should fall into + # ranks in the right filesystem + self.mds_cluster.mds_restart(mds_a) + self.mds_cluster.mds_restart(mds_b) + self.mds_cluster.mds_restart(mds_c) + self.mds_cluster.mds_restart(mds_d) + self.wait_for_daemon_start([mds_a, mds_b, mds_c, mds_d]) + fs_a.wait_for_daemons() + fs_b.wait_for_daemons() + self.assertEqual(set(fs_a.get_active_names()), {mds_a, mds_b}) + self.assertEqual(set(fs_b.get_active_names()), {mds_c, mds_d}) + + def test_standby_for_invalid_fscid(self): + """ + That an invalid standby_fscid does not cause a mon crash + """ + use_daemons = sorted(self.mds_cluster.mds_ids[0:3]) + mds_a, mds_b, mds_c = use_daemons + log.info("Using MDS daemons: {0}".format(use_daemons)) + + def set_standby_for_rank(leader_rank, follower_id): + self.set_conf("mds.{0}".format(follower_id), + "mds_standby_for_rank", leader_rank) + + # Create one fs + fs_a = self.mds_cluster.newfs("cephfs") + + # Get configured mons in the cluster, so we can see if any + # crashed later. + configured_mons = fs_a.mon_manager.get_mon_quorum() + + # Set all the daemons to have a rank assignment but no other + # standby preferences. + set_standby_for_rank(0, mds_a) + set_standby_for_rank(0, mds_b) + + # Set third daemon to have invalid fscid assignment and no other + # standby preferences + invalid_fscid = 123 + self.set_conf("mds.{0}".format(mds_c), "mds_standby_for_fscid", invalid_fscid) + + #Restart all the daemons to make the standby preference applied + self.mds_cluster.mds_restart(mds_a) + self.mds_cluster.mds_restart(mds_b) + self.mds_cluster.mds_restart(mds_c) + self.wait_for_daemon_start([mds_a, mds_b, mds_c]) + + #Stop active mds daemon service of fs + if (fs_a.get_active_names(), [mds_a]): + self.mds_cluster.mds_stop(mds_a) + self.mds_cluster.mds_fail(mds_a) + fs_a.wait_for_daemons() + else: + self.mds_cluster.mds_stop(mds_b) + self.mds_cluster.mds_fail(mds_b) + fs_a.wait_for_daemons() + + #Get active mons from cluster + active_mons = fs_a.mon_manager.get_mon_quorum() + + #Check for active quorum mon status and configured mon status + self.assertEqual(active_mons, configured_mons, + "Not all mons are in quorum Invalid standby invalid fscid test failed!") |