Are you referring to manual roll out of ceph osd crush tunables optimal (http://lists.ceph.com/pipermail/ceph-users-ceph.com/2014-July/041499.html) ?
The web site hasn't been updated to state what "undersized" means, but the code says that means there are fewer replicas than requested. That's different from degraded, which is when not all of the replicas are available.
Can you include a copy of ceph osd tree and your crushmap?
Were the OSDs flapping when you did those queries? pg 6.19 says [0,1] is acting, but only [0] is up. pg 6.0 says [1] is acting and [1] is up. It seems strange that different PGs have a different idea of which OSDs are up.
Were the OSDs flapping when you did those queries? pg 6.19 says [0,1] is acting, but only [0] is up. pg 6.0 says [1] is acting and [1] is up. It seems strange that different PGs have a different idea of which OSDs are up.
The web site hasn't been updated to state what "undersized" means, but the code says that means there are fewer replicas than requested. That's different from degraded, which is when not all of the replicas are available.
I'm not really sure what that means in practice though. If I had to guess, I say the crushmap is bad maybe?
On Wed, Nov 5, 2014 at 6:35 AM, Andrey Korolyov <andrey@xxxxxxx> wrote:
Hello,
after doing a single-step transition, the test cluster is hanging in
unclean state, both before and after crush tunables adjustment:
status:
http://xdel.ru/downloads/transition-stuck/cephstatus.txt
osd dump:
http://xdel.ru/downloads/transition-stuck/cephosd.txt
query for a single pg in active+remapped state:
http://xdel.ru/downloads/transition-stuck/remappedpg.txt
query for a single pg in active+undersized+degraded state:
http://xdel.ru/downloads/transition-stuck/degradedpg.txt
As one can see there is empty value for backfill_targets for both sets
of pg which is clearly indicates some problem with placement
calculation (two-node two-osd cluster should have enough targets for
backfilling in this case).
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
_______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
