If using the autoscaler there may be some knock-on PG splitting, but that should be throttled automatically. Do be sure that your mon DBs are on SSDs.
> On Mar 6, 2025, at 7:26 AM, Eugen Block <ebl...@nde.ag> wrote: > > Hi Rich, > > I waited for other users/operators to chime in because it's been a while > since we deleted a large pool last time in a customer cluster. I may > misremember, so please take that with a grain of salt. But the pool deletion > I am referring to was actually on Nautilus as well. In a small lab cluster I > just did the same, trying to confirm my memories. > I would not recommend to delete the objects by looping over 'rados ls'. Btw., > there's a rados purge command which loops through the pool for you: > > rados purge <pool-name> --yes-i-really-really-mean-it > > If you delete the pool itself (ceph osd pool delete), only the OSD's DBs > would have some more work to clean that up, but I believe it's the best > option here. But I'd rather have that confirmed by someone else. > > Regards, > Eugen > > > Zitat von Richard Bade <hitr...@gmail.com>: > >> Hi Everyone, >> We're reducing back down from multisite to a single rgw zone. This >> will mean that some pools will be unused so I'd like to delete them. >> However there are some objects and data remaining in the pool even >> though the buckets are all deleted. It's just shadow objects. All the >> actual data has been deleted. >> So my question is around performance impact of deleting a pool with >> data in it. Will ceph handle things nicely or will it try remove all >> that data at once? >> I'm on Nautilus 14.2.22 with all bluestore osds on spinning disks with >> nvme db. Pools are erasure coded k=4 m=2. >> I'm thinking it might be best to do rados ls and loop through rados rm >> the objects to control the speed. >> There is one mailing list thread from 7 years ago basically saying the >> same but I was wondering if anyone else had any input around this? >> >> Thanks, >> Rich >> _______________________________________________ >> ceph-users mailing list -- ceph-users@ceph.io >> To unsubscribe send an email to ceph-users-le...@ceph.io > > > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
