Hi Dan, indeed I'm trying to balance the PGs. In order to ensure Ceph cluster operations I used OSD reweight, means some specific OSDs are not with reweight 0.8 and 0.9 respectively. Question: Can I upgrade to Ceph 14.2.8 w/o resetting the weight to 1.0? Or should I cleanup this reweight first, the upgrade to 14.2.8 and enable balancer as last? Regards Thomas Am 16.03.2020 um 16:10 schrieb Dan van der Ster:
Hi Thomas, I lost track of your issue. Are you just trying to balance the PGs ? 14.2.8 has big improvements -- check the release notes / blog post about setting the upmap_max_deviations down to 2 or 1. -- Dan
On Mon, Mar 16, 2020 at 4:00 PM Thomas Schneider <74cmonty@gmail.com> wrote:
Hi Dan,
I have opened this this bug report for balancer not working as expected. https://tracker.ceph.com/issues/43586
Then I thought it could make sense to balance the cluster manually by means of moving PGs from a heavily loaded OSD to another.
I found your slides "Luminous: pg upmap (dev) <https://indico.cern.ch/event/669931/contributions/2742401/attachments/1533434/2401109/upmap.pdf>", but I didn't fully understand.
Could you please advise how to move PGs manually?
Regards Thomas
Am 23.01.2020 um 16:05 schrieb Dan van der Ster:
Hi Frank,
No, it is basically balancing the num_pgs per TB (per osd).
Cheers, Dan
On Thu, Jan 23, 2020 at 3:53 PM Frank R <frankaritchie@gmail.com <mailto:frankaritchie@gmail.com>> wrote:
Hi all,
Does using the Upmap balancer require that all OSDs be the same size (per device class)?
thx Frank _______________________________________________ ceph-users mailing list -- ceph-users@ceph.io <mailto:ceph-users@ceph.io> To unsubscribe send an email to ceph-users-leave@ceph.io <mailto:ceph-users-leave@ceph.io>
_______________________________________________ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-leave@ceph.io