On 2/26/20 3:40 AM, shubjero wrote: Balancer in upmap mode should always work on not reweighed (e.g. 1.0000) OSD's. k

I talked to some guys on IRC about going back to the non-1 reweight OSD's and setting them to 1. I went from a standard deviation of 2+ to 0.5. Awesome. On Wed, Feb 26, 2020 at 10:08 AM shubjero <shubjero(a)gmail.com> wrote: > > Right, but should I be proactively returning any reweighted OSD's that > are not 1.0000 to 1.0000? > > On Wed, Feb 26, 2020 at 3:36 AM Konstantin Shalygin <k0ste(a)k0ste.ru> wrote: > > > > On 2/26/20 3:40 AM, shubjero wrote: > > > I'm running a Ceph Mimic cluster 13.2.6 and we use the ceph-balancer > > > in upmap mode. This cluster is fairly old and pre-Mimic we used to set > > > osd reweights to balance the standard deviation of the cluster. Since > > > moving to Mimic about 9 months ago I enabled the ceph-balancer with > > > upmap mode and let it do its thing but I did not think about setting > > > the previously modified reweights back to 1.00000 (not sure if this is > > > fine or would have been a best practice?) > > > > > > Does the ceph-balancer in upmap mode manage the osd reweight > > > dynamically? Just wondering if I need to proactively go back and set > > > all non 1.00000 reweights to 1.00000. > > > > Balancer in upmap mode should always work on not reweighed (e.g. 1.0000) > > OSD's. > > > > > > > > k > >