Re: Placement Groups fail on fresh Ceph cluster installation with all OSDs up and in

B L <super.iterator@xxxxxxxxx> · Tue, 10 Feb 2015 16:25:14 +0200

Thanks for everyone!!

After applying the re-weighting command (ceph osd crush reweight osd.0 0.0095), my cluster is getting healthy now :))

But I have one question, what if I have hundreds of OSDs, shall I do the re-weighting on each device, or there is some way to make this happen automatically .. the question in other words, why would I need to do weighting in the first place??

On Feb 10, 2015, at 4:00 PM, Vikhyat Umrao <vumrao@xxxxxxxxxx> wrote:

    Oh , I have miss placed the
        places for osd names and weight 

    ceph osd crush reweight
        osd.0 0.0095  and so on ..

        Regards,

        Vikhyat

    On 02/10/2015 07:31 PM, B L wrote:

      Thanks Vikhyat,

      As suggested .. 

        ceph@ceph-node1:/home/ubuntu$ ceph osd crush
          reweight 0.0095 osd.0

        Invalid command:  osd.0 doesn't represent a float
        osd crush reweight <name>
          <float[0.0-]> :  change <name>'s weight to
          <weight> in crush map
        Error EINVAL: invalid command

      What do you think

          On Feb 10, 2015, at 3:18 PM, Vikhyat Umrao <vumrao@xxxxxxxxxx> wrote:

          sudo ceph osd crush reweight 0.0095 osd.0 to osd.5

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