Nice - so I just realized I need to manually scrub 1216 placements groups :)
On 13 March 2015 at 10:16, Andrija Panic <andrija.pa...@gmail.com> wrote: > Thanks Wido - I will do that. > > On 13 March 2015 at 09:46, Wido den Hollander <w...@42on.com> wrote: > >> >> >> On 13-03-15 09:42, Andrija Panic wrote: >> > Hi all, >> > >> > I have set nodeep-scrub and noscrub while I had small/slow hardware for >> > the cluster. >> > It has been off for a while now. >> > >> > Now we are upgraded with hardware/networking/SSDs and I would like to >> > activate - or unset these flags. >> > >> > Since I now have 3 servers with 12 OSDs each (SSD based Journals) - I >> > was wondering what is the best way to unset flags - meaning if I just >> > unset the flags, should I expect that the SCRUB will start all of the >> > sudden on all disks - or is there way to let the SCRUB do drives one by >> > one... >> > >> >> So, I *think* that unsetting these flags will trigger a big scrub, since >> all PGs have a very old last_scrub_stamp and last_deepscrub_stamp >> >> You can verify this with: >> >> $ ceph pg <pgid> query >> >> A solution would be to scrub each PG manually first in a timely fashion. >> >> $ ceph pg scrub <pgid> >> >> That way you set the timestamps and slowly scrub each PG. >> >> When that's done, unset the flags. >> >> Wido >> >> > In other words - should I expect BIG performance impact or....not ? >> > >> > Any experience is very appreciated... >> > >> > Thanks, >> > >> > -- >> > >> > Andrija Panić >> > >> > >> > _______________________________________________ >> > ceph-users mailing list >> > ceph-users@lists.ceph.com >> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > >> _______________________________________________ >> ceph-users mailing list >> ceph-users@lists.ceph.com >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >> > > > > -- > > Andrija Panić > -- Andrija Panić
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