Dear Nick & Wido,
Many thanks for your helpful advice; our cluster has returned to HEALTH_OK
One caveat is that a small number of pgs remained at "activating".
By increasing mon_max_pg_per_osd from 500 to 1000 these few osds
activated, allowing the cluster to rebalance fully.
i.e. this was needed
mon_max_pg_per_osd = 1000
once the cluster returned to HEALTH_OK the mon_max_pg_per_osd setting
was removed.
again, many thanks...
Jake
On 29/01/18 13:07, Nick Fisk wrote:
Hi Jake,
I suspect you have hit an issue that me and a few others have hit in
Luminous. By increasing the number of PG's before all the data has
re-balanced, you have probably exceeded hard PG per OSD limit.
See this thread
https://www.spinics.net/lists/ceph-users/msg41231.html
Nick
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