Will do, of course :)
THx Wido for quick help, as always !
On 13 March 2015 at 12:04, Wido den Hollander <wido@xxxxxxxx> 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.panic@xxxxxxxxx
> <mailto:andrija.panic@xxxxxxxxx>> wrote:
>
> Thanks Wido - I will do that.
>
> On 13 March 2015 at 09:46, Wido den Hollander <wido@xxxxxxxx
> > ceph-users@xxxxxxxxxxxxxx <mailto:ceph-users@xxxxxxxxxxxxxx>> <mailto:wido@xxxxxxxx>> 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
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
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>
>
>
> --
>
> Andrija Panić
>
>
>
>
> --
>
> Andrija Panić
Andrija Panić
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