Regardless of which node you run that command on, the command is talking to
the mons.  If you are getting different values between different nodes,
double check their configs and make sure your mon quorum isn't somehow in a
split-brain scenario.  Which version of Ceph are you running.

On Tue, Aug 8, 2017 at 4:13 AM Osama Hasebou <> wrote:

> Hi Everyone,
> I was trying to run the ceph osd crush reweight command to move data out
> of one node that has hardware failures and I noticed that as I set the
> crush reweight to 0, some nodes would reflect it when I do ceph osd tree
> and some wouldn't.
> What is the proper way to run command access cluster, does one need to run
> same command *ceph osd crush reweight* from all mon nodes and it would push
> it down to all osd tree and update the crush, or is it also ok to run it
> once on an osd node and it will copy it across the other nodes and update
> the crush map?
> Thank you!
> Regards,
> Ossi
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