cinder/ceph-backup-no-flatten-36557727e9d73b2b.yaml at 08adeda490d759d7debbfe90963ac6bde308258c - cinder - OpenDev: Free Software Needs Free Tools

openstack/cinder

Gorka Eguileor e726c07948 RBD: Don't flatten temporary resources

There are instances where cinder needs to create a temporary volume and
this can trigger a flatten of the new temporary volume, which will make
the operation take a lot longer.

In some cases this means slower operations, but in others it leads to
rpc timeout failures.

A case where we see timeout failures is when doing a backup of a
snapshot and we have rbd_flatten_volume_from_snapshot=true.

This patch ensures that we don't flatten temporary volumes.

Closes-Bug: #1916843
Change-Id: I8f55c3beb2f8df5b2227506f82ddf6ee57c951ae

2021-08-30 19:12:01 +02:00

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 ---
 fixes:
   - |
     RBD driver `bug #1916843
     <https://bugs.launchpad.net/cinder/+bug/1916843>`_: Fixed
     rpc timeout when backing up RBD snapshot. We no longer flatten temporary
     volumes and snapshots.