Hello, I also observed excessively growing mon DB in case of recovery. Luckily we were able to solve it by exdending the mon db disk. Without having the chance to re-check: The options nobackfill and norecover might cause that behavior.It feelds like mon holds data that cannot be flushed to an OSD. rgds, j. On 11.03.21 10:47, Marc wrote: > From what I have read here in the past, growing monitor db is related to not having pg's in 'clean active' state > > >> -----Original Message----- >> From: ricardo.re.azevedo@xxxxxxxxx <ricardo.re.azevedo@xxxxxxxxx> >> Sent: 11 March 2021 00:59 >> To: ceph-users@xxxxxxx >> Subject: mon db growing. over 500Gb >> >> Hi all, >> >> >> >> I have a fairly pressing issue. I had a monitor fall out of quorum >> because >> it ran out of disk space during rebalancing from switching to upmap. I >> noticed all my monitor store.db started taking up nearly all disk space >> so I >> set noout, nobackfill and norecover and shutdown all the monitor >> daemons. >> Each store.db was at: >> >> >> >> mon.a 89GB (the one that firt dropped out) >> >> mon.a 400GB >> >> mon.c 400GB >> >> >> I tried setting mon_compact_on_start. This brought mon.a down to 1GB. >> Cool. >> However, when I try it on the other monitors it increased the db size >> ~1Gb/10s so I shut them down again. >> >> Any idea what is going on? Or how can I shrik back down the db? >> >> >> >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > -- Andreas John net-lab GmbH | Frankfurter Str. 99 | 63067 Offenbach Geschaeftsfuehrer: Andreas John | AG Offenbach, HRB40832 Tel: +49 69 8570033-1 | Fax: -2 | http://www.net-lab.net Facebook: https://www.facebook.com/netlabdotnet Twitter: https://twitter.com/netlabdotnet _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx