Thank You Dwyeni for the quick response. We have 2 Hammer which are due for
upgrade to Luminous next month and 1 Luminous 12.2.8. Will try this on
Luminous and if it works then will apply the same once the Hammer clusters
are upgraded rather than adjusting the weights.
Thanks,
Pardhiv Karri
On
Hi,
If you are running Ceph Luminous or later, use the Ceph Manager Daemon's
Balancer module. (http://docs.ceph.com/docs/luminous/mgr/balancer/).
Otherwise, tweak the OSD weights (not the OSD CRUSH weights) until you
achieve uniformity. (You should be able to get under 1 STDDEV). I
would
Hi,
We have Ceph clusters which are greater than 1PB. We are using tree
algorithm. The issue is with the data placement. If the cluster utilization
percentage is at 65% then some of the OSDs are already above 87%. We had to
change the near_full ratio to 0.90 to circumvent warnings and to get back
