Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-10-02 Thread Dan van der Ster
On Mon, Oct 1, 2018 at 8:09 PM Gregory Farnum wrote: > > On Fri, Sep 28, 2018 at 12:03 AM Dan van der Ster wrote: > > > > On Thu, Sep 27, 2018 at 9:57 PM Maged Mokhtar wrote: > > > > > > > > > > > > On 27/09/18 17:18, Dan van der Ster wrote: > > > > Dear Ceph friends, > > > > > > > > I have a CR

Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-10-01 Thread Gregory Farnum
On Fri, Sep 28, 2018 at 12:03 AM Dan van der Ster wrote: > > On Thu, Sep 27, 2018 at 9:57 PM Maged Mokhtar wrote: > > > > > > > > On 27/09/18 17:18, Dan van der Ster wrote: > > > Dear Ceph friends, > > > > > > I have a CRUSH data migration puzzle and wondered if someone could > > > think of a cle

Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-09-28 Thread Dan van der Ster
On Fri, Sep 28, 2018 at 12:51 AM Goncalo Borges wrote: > > Hi Dan > > Hope to find you ok. > > Here goes a suggestion from someone who has been sitting in the side line for > the last 2 years but following stuff as much as possible > > Will weight set per pool help? > > This is only possible in l

Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-09-28 Thread Dan van der Ster
On Thu, Sep 27, 2018 at 9:57 PM Maged Mokhtar wrote: > > > > On 27/09/18 17:18, Dan van der Ster wrote: > > Dear Ceph friends, > > > > I have a CRUSH data migration puzzle and wondered if someone could > > think of a clever solution. > > > > Consider an osd tree like this: > > > >-2 4428

Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-09-28 Thread Dan van der Ster
On Thu, Sep 27, 2018 at 6:34 PM Luis Periquito wrote: > > I think your objective is to move the data without anyone else > noticing. What I usually do is reduce the priority of the recovery > process as much as possible. Do note this will make the recovery take > a looong time, and will also make

Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-09-27 Thread Goncalo Borges
Hi Dan Hope to find you ok. Here goes a suggestion from someone who has been sitting in the side line for the last 2 years but following stuff as much as possible Will weight set per pool help? This is only possible in luminous but according to the docs there is the possibility to adjust positi

Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-09-27 Thread Maged Mokhtar
On 27/09/18 17:18, Dan van der Ster wrote: Dear Ceph friends, I have a CRUSH data migration puzzle and wondered if someone could think of a clever solution. Consider an osd tree like this: -2 4428.02979 room 0513-R-0050 -72911.81897 rack RA01 -4917.

Re: [ceph-users] CRUSH puzzle: step weighted-take

2018-09-27 Thread Luis Periquito
I think your objective is to move the data without anyone else noticing. What I usually do is reduce the priority of the recovery process as much as possible. Do note this will make the recovery take a looong time, and will also make recovery from failures slow... ceph tell osd.* injectargs '--osd_