qa/workunits/rbd-nbd: work around "rbd feature disable" hang
"rbd feature disable" appears to reliably hang if the corresponding
remote request is proxied to rbd-nbd (because rbd-nbd happens to own
the exclusive lock after a series of blkdiscard calls) [1]. Work
around it here by enabling journaling before the image is mapped
and disabling it after the image is unmapped.
Also, don't assert on the output of "rbd journal inspect --verbose"
having a certain number of entries. This is racy: if the script gets
delayed after the last blkdiscard call for some reason, there may be
fewer entries present in the journal or none at all.
projects / ceph.git / commit