Will do, of course :) THx Wido for quick help, as always !
On 13 March 2015 at 12:04, Wido den Hollander <w...@42on.com> wrote: > > > On 13-03-15 12:00, Andrija Panic wrote: > > Nice - so I just realized I need to manually scrub 1216 placements > groups :) > > > > With manual I meant using a script. > > Loop through 'ceph pg dump', get the PGid, issue a scrub, sleep for X > seconds and issue the next scrub. > > Wido > > > > > On 13 March 2015 at 10:16, Andrija Panic <andrija.pa...@gmail.com > > <mailto:andrija.pa...@gmail.com>> wrote: > > > > Thanks Wido - I will do that. > > > > On 13 March 2015 at 09:46, Wido den Hollander <w...@42on.com > > <mailto: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 <mailto:ceph-users@lists.ceph.com> > > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > > > > > -- > > > > Andrija Panić > > > > > > > > > > -- > > > > Andrija Panić > -- Andrija Panić
_______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
