Before resorting to a measure as drastic as this, it is a good idea to try less
drastic measures and then assess if the file system experience has improved due
to it. One example of such less drastic measure is to disable asynchronous
-threads launched by volumes plugins for cloning and purging trash.
+threads launched by volumes plugins for cloning and purging trash. For details
+on these see: :ref:`pause-purge-threads` and :ref:`pause-clone-threads`.
.. _manila: https://github.com/openstack/manila
be changed in such circumstances, run the command to change ``max_mds`` with
the confirmation flag (``--yes-i-really-mean-it``)
+.. _pause-purge-threads:
* **Turn off async purge threads** The volumes plugin spawns threads for
asynchronously purging trashed/deleted subvolumes. To help troubleshooting or
recovery effort, these purge threads can be disabled using:
ceph config set mgr mgr/volumes/pause_purging false
+.. _pause-clone-threads:
* **Turn off async cloner threads** The volumes plugin spawns threads for
asynchronously cloning subvolume snapshots. To help troubleshooting or
recovery effort, these cloner threads can be disabled using: