Re: [ceph-users] CRUSH rebalance all at once or host-by-host?

2020-01-08 Thread Sean Matheny
OSDs on 14 hosts, btw. Cheers, Sean M On 8/01/2020, at 1:32 PM, Sean Matheny mailto:s.math...@auckland.ac.nz>> wrote: We’re adding in a CRUSH hierarchy retrospectively in preparation for a big expansion. Previously we only had host and osd buckets, and now we’ve added in rack buckets.

[ceph-users] CRUSH rebalance all at once or host-by-host?

2020-01-07 Thread Sean Matheny
We’re adding in a CRUSH hierarchy retrospectively in preparation for a big expansion. Previously we only had host and osd buckets, and now we’ve added in rack buckets. I’ve got sensible settings to limit rebalancing set, at least what has worked in the past: osd_max_backfills = 1 osd_recovery_t