projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| d2e6a577 FG |
1 | >= 12.1.2 |
| 2 | --------- | |
| 3 | * When running 'df' on a CephFS filesystem comprising exactly one data pool, | |
| 4 | the result now reflects the file storage space used and available in that | |
| 5 | data pool (fuse client only). | |
| 6 | * Added new commands "pg force-recovery" and "pg-force-backfill". Use them | |
| 7 | to boost recovery or backfill priority of specified pgs, so they're | |
| 8 | recovered/backfilled before any other. Note that these commands don't | |
| 9 | interrupt ongoing recovery/backfill, but merely queue specified pgs | |
| 10 | before others so they're recovered/backfilled as soon as possible. | |
| 11 | New commands "pg cancel-force-recovery" and "pg cancel-force-backfill" | |
| 12 | restore default recovery/backfill priority of previously forced pgs. | |
| 7c673cae | 13 | |
| 181888fb FG |
14 | |
| 15 | 12.2.1 | |
| 16 | ------ | |
| 17 | ||
| 18 | * Clusters will need to upgrade to 12.2.1 before upgrading to any | |
| 19 | Mimic 13.y.z version (either a development release or an eventual | |
| 20 | stable Mimic release). | |
| 21 | ||
| 22 | - *CephFS*: | |
| 23 | ||
| 24 | * Limiting MDS cache via a memory limit is now supported using the new | |
| 25 | mds_cache_memory_limit config option (1GB by default). A cache reservation | |
| 26 | can also be specified using mds_cache_reservation as a percentage of the | |
| 27 | limit (5% by default). Limits by inode count are still supported using | |
| 28 | mds_cache_size. Setting mds_cache_size to 0 (the default) disables the | |
| 29 | inode limit. | |
| 3efd9988 FG |
30 | |
| 31 | * The maximum number of PGs per OSD before the monitor issues a | |
| 32 | warning has been reduced from 300 to 200 PGs. 200 is still twice | |
| 33 | the generally recommended target of 100 PGs per OSD. This limit can | |
| 34 | be adjusted via the ``mon_max_pg_per_osd`` option on the | |
| 35 | monitors. The older ``mon_pg_warn_max_per_osd`` option has been removed. | |
| 36 | ||
| 37 | * Creating pools or adjusting pg_num will now fail if the change would | |
| 38 | make the number of PGs per OSD exceed the configured | |
| 39 | ``mon_max_pg_per_osd`` limit. The option can be adjusted if it | |
| 40 | is really necessary to create a pool with more PGs. | |
| b32b8144 FG |
41 | |
| 42 | 12.2.3 | |
| 43 | ------ | |
| 44 | ||
| 45 | - *RBD*: | |
| 46 | ||
| 47 | * The RBD C API's rbd_discard method now enforces a maximum length of | |
| 48 | 2GB to match the C++ API's Image::discard method. This restriction | |
| 49 | prevents overflow of the result code. | |
| 50 | ||
| 51 | - *CephFS*: | |
| 52 | ||
| 53 | * The CephFS client now catches failures to clear dentries during startup | |
| 54 | and refuses to start as consistency and untrimmable cache issues may | |
| 55 | develop. The new option client_die_on_failed_dentry_invalidate (default: | |
| 56 | true) may be turned off to allow the client to proceed (dangerous!). |