Re: Luminous - replace old target-weight tree from osdmap with mgr balancer

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On Wed, 10 Jan 2018, Stefan Priebe - Profihost AG wrote:
> k,
> 
> in the past we used the python crush optimize tool to reweight the osd
> usage - it inserted a 2nd tree with $hostname-target-weight as hostnames.

Can you attach a 'ceph osd crush tree' (or partial output) so I can see 
what you mean?

Thanks!
sage

> 
> Now the quesions are:
> 1.) can we remove the tree? How?
> 2.) Can we do this now or only after all clients are running Luminous?
> 3.) is it enought to enable the mgr balancer module?
> 
> Thanks!
> 
> Greets,
> Stefan
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