Scrub testing requires an orderly control of scrubbing. Most but not
all the time, the duplicate scrub request is ignored because the first
request hasn't finished. Teuthology enables this environment variable
in the workunit handling.
Fixes: https://tracker.ceph.com/issues/36525
Signed-off-by: David Zafman <dzafman@redhat.com>
If there is a stray clone (one that does not appear in the SnapSet) and
we do any sort of recovery on it the OSD will crash. Log an error instead
but continue.
This addresses a problem where a cluster has both (1) an unexpected clone
and (2) the clone is not present on all replicas. Doing repair on that
PG will both not fix the unexpected clone and also cause the remaining
OSDs to crash trying to recover it.
Include a test.
Fixes: https://tracker.ceph.com/issues/24396
Signed-off-by: Sage Weil <sage@redhat.com>
