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qa: assign file system affinity for replaced MDS

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Otherwise, the MDS that just got replaced can transition to a rank
for another file system and the test cannot deterministically infer
which MDS needs to checked.

Fixes: http://tracker.ceph.com/issues/61764
Signed-off-by: Venky Shankar <vshankar@redhat.com>
This commit is contained in:
Venky Shankar 2023-06-22 06:08:44 -04:00
parent fd62a8dfcb
commit f370b581f6
1 changed files with 20 additions and 5 deletions
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25
qa/tasks/cephfs/test_failover.py
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@ -14,9 +14,12 @@ class TestClusterAffinity(CephFSTestCase):
CLIENTS_REQUIRED = 0
MDSS_REQUIRED = 4
def _verify_join_fs(self, target, status=None):
def _verify_join_fs(self, target, status=None, fs=None):
fs_select = fs
if fs_select is None:
fs_select = self.fs
if status is None:
status = self.fs.wait_for_daemons(timeout=30)
status = fs_select.wait_for_daemons(timeout=30)
log.debug("%s", status)
target = sorted(target, key=operator.itemgetter('name'))
log.info("target = %s", target)
@ -37,11 +40,14 @@ class TestClusterAffinity(CephFSTestCase):
return
self.fail("no entity")
def _verify_init(self):
status = self.fs.status()
def _verify_init(self, fs=None):
fs_select = fs
if fs_select is None:
fs_select = self.fs
status = fs_select.status()
log.info("status = {0}".format(status))
target = [{'join_fscid': -1, 'name': info['name']} for info in status.get_all()]
self._verify_join_fs(target, status=status)
self._verify_join_fs(target, status=status, fs=fs_select)
return (status, target)
def _reach_target(self, target):
@ -107,12 +113,21 @@ class TestClusterAffinity(CephFSTestCase):
fs2 = self.mds_cluster.newfs(name="cephfs2")
status, target = self._verify_init()
active = self.fs.get_active_names(status=status)[0]
status2, _ = self._verify_init(fs=fs2)
active2 = fs2.get_active_names(status=status2)[0]
standbys = [info['name'] for info in status.get_standbys()]
victim = standbys.pop()
# Set a bogus fs on the others
for mds in standbys:
self.config_set('mds.'+mds, 'mds_join_fs', 'cephfs2')
self._change_target_state(target, mds, {'join_fscid': fs2.id})
# The active MDS for cephfs2 will be replaced by the MDS for which
# file system affinity has been set. Also, set the affinity for
# the earlier active MDS so that it is not chosen by the monitors
# as an active MDS for the existing file system.
log.info(f'assigning affinity to cephfs2 for active mds (mds.{active2})')
self.config_set(f'mds.{active2}', 'mds_join_fs', 'cephfs2')
self._change_target_state(target, active2, {'join_fscid': fs2.id})
self.fs.rank_fail()
self._change_target_state(target, victim, {'state': 'up:active'})
self._reach_target(target)