Re: Ceph RBD 0.78 Bug or feature?

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On Tue, Mar 25, 2014 at 8:38 AM, Ирек Фасихов <malmyzh@xxxxxxxxx> wrote:
> Hi, Ilya.
>
> I added the files(crushd and osddump) to a folder in GoogleDrive.
>
> https://drive.google.com/folderview?id=0BxoNLVWxzOJWX0NLV1kzQ1l3Ymc&usp=sharing

OK, so this has nothing to do with caching.  You have chooseleaf_vary_r
set to 1 in your crushmap.  This is a new crush tunable, which was
introduced long after 3.14 merge window closed.  It will be supported
starting with 3.15, until then you should be able to do

ceph osd getcrushmap -o /tmp/crush
crushtool -i /tmp/crush --set-chooseleaf_vary_r 0 -o /tmp/crush.new
ceph osd setcrushmap -i /tmp/crush.new

to disable it.

Thanks,

                Ilya
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