I deleted a 240TB rgw pool a few weeks ago, caused a huge slowdown. Lucky it wasn't a
important cluster otherwise it would've taken it down for a week.
From: Scheurer François <francois.scheurer(a)everyware.ch>
Sent: Wednesday, 6 January 2021 11:32 PM
To: ceph-users(a)ceph.io
Subject: [ceph-users] performance impact by pool deletion?
Hi everybody
Does somebody had experience with important performance degradations during
a pool deletion?
We are asking because we are going to delete a 370 TiB with 120 M objects and have never
done this in the past.
The pool is using erasure coding 8+2 on nvme ssd's with rocksdb/wal on nvme optane
disks.
Openstack VM's are running on the other rbd pools.
Thank you in advance for your feedback!
Cheers
Francois
PS:
this is no option, as it take about 100 year to complete ;-) :
rados -p ch-zh1-az1.rgw.buckets.data ls | while read i; do rados -p
ch-zh1-az1.rgw.buckets.data rm "$i"; done
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François Scheurer
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mail: francois.scheurer@everyware.ch<mailto:francois.scheurer@everyware.ch>
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