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Diffstat (limited to 'src/ceph/PendingReleaseNotes')
| -rw-r--r-- | src/ceph/PendingReleaseNotes | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/ceph/PendingReleaseNotes b/src/ceph/PendingReleaseNotes new file mode 100644 index 0000000..b46d1dc --- /dev/null +++ b/src/ceph/PendingReleaseNotes @@ -0,0 +1,40 @@ +>= 12.1.2 +--------- +* When running 'df' on a CephFS filesystem comprising exactly one data pool, + the result now reflects the file storage space used and available in that + data pool (fuse client only). +* Added new commands "pg force-recovery" and "pg-force-backfill". Use them + to boost recovery or backfill priority of specified pgs, so they're + recovered/backfilled before any other. Note that these commands don't + interrupt ongoing recovery/backfill, but merely queue specified pgs + before others so they're recovered/backfilled as soon as possible. + New commands "pg cancel-force-recovery" and "pg cancel-force-backfill" + restore default recovery/backfill priority of previously forced pgs. + + +12.2.1 +------ + +* Clusters will need to upgrade to 12.2.1 before upgrading to any + Mimic 13.y.z version (either a development release or an eventual + stable Mimic release). + +- *CephFS*: + + * Limiting MDS cache via a memory limit is now supported using the new + mds_cache_memory_limit config option (1GB by default). A cache reservation + can also be specified using mds_cache_reservation as a percentage of the + limit (5% by default). Limits by inode count are still supported using + mds_cache_size. Setting mds_cache_size to 0 (the default) disables the + inode limit. + +* The maximum number of PGs per OSD before the monitor issues a + warning has been reduced from 300 to 200 PGs. 200 is still twice + the generally recommended target of 100 PGs per OSD. This limit can + be adjusted via the ``mon_max_pg_per_osd`` option on the + monitors. The older ``mon_pg_warn_max_per_osd`` option has been removed. + +* Creating pools or adjusting pg_num will now fail if the change would + make the number of PGs per OSD exceed the configured + ``mon_max_pg_per_osd`` limit. The option can be adjusted if it + is really necessary to create a pool with more PGs. |