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| author |   Keith Schincke <keith.schincke@gmail.com> | 2017-05-12 08:12:56 -0400 |
|---|---|---|
| committer | Keith Schincke <keith.schincke@gmail.com> | 2017-05-22 14:38:52 -0400 |
| commit | cdfe03566354b938e94c6863b0d4b1c3e64cc10c (patch) | |
| tree | acec9be2315c3819240d525afccf423b6c615d5c /releasenotes | |
| parent | 340dfd4d2f2add386ac92e222023988a529ad96f (diff) | |
Remove osd_pool_default_min_size to allow Ceph cluster to do the right thing by default
The default value is 0 which has the minimum number be caluclated based on the replica count
from osd_pool_defaut_size. The default replica count is 3 and the calculated min_size is 2.
If the replica count is 1 then the min_size is 1. ie: min_size = replica - (replica/2)
Add CephPoolDefaultSize parameter to ceph-mon.yaml. This parameter defaults to 3 but can
be overriden. See puppet-ceph-devel.yaml for an example
Change-Id: Ie9bdd9b16bcb9f11107ece614b010e87d3ae98a9
Diffstat (limited to 'releasenotes')
| -rw-r--r-- | releasenotes/notes/unset-ceph-default-min-size-0297620ed99dab5b.yaml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/releasenotes/notes/unset-ceph-default-min-size-0297620ed99dab5b.yaml b/releasenotes/notes/unset-ceph-default-min-size-0297620ed99dab5b.yaml new file mode 100644 index 00000000..fc2cb48a --- /dev/null +++ b/releasenotes/notes/unset-ceph-default-min-size-0297620ed99dab5b.yaml @@ -0,0 +1,12 @@ +--- +fixes: + - | + Removed the hard coding of osd_pool_default_min_size. Setting this value + to 1 can result in data loss in operating production deployments. Not + setting this value (or setting it to 0) will allow ceph to calculate the + value based on the current setting of osd_pool_default_size. If the + replication count is 3, then the calculated min_size is 2. If the + replication count is 1, then the calcualted min_size is 1. For a POC + deployments using a single OSD, set osd_pool_default_size = 1. See + description at http://docs.ceph.com/docs/master/rados/configuration/pool-pg-config-ref/ + Added CephPoolDefaultSize to set default replication size. Default value is 3. |