Re: [ceph-users] how to trigger offline filestore merge

2019-04-09 Thread Dan van der Ster
Hi again, Thanks to a hint from another user I seem to have gotten past this. The trick was to restart the osds with a positive merge threshold (10) then cycle through rados bench several hundred times, e.g. while true ; do rados bench -p default.rgw.buckets.index 10 write -b 4096 -t 128; sle

[ceph-users] how to trigger offline filestore merge

2019-04-09 Thread Dan van der Ster
Hi all, We have a slight issue while trying to migrate a pool from filestore to bluestore. This pool used to have 20 million objects in filestore -- it now has 50,000. During its life, the filestore pgs were internally split several times, but never merged. Now the pg _head dirs have mostly empty