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

[B L <super.iterator@xxxxxxxxx>]

Thank you Vickie .. and thanks to the ceph community for showing continued support 

Best of luck to all !

On Feb 11, 2015, at 3:58 AM, Vickie ch <mika.leaf666@xxxxxxxxx> wrote:

Hi

The weight is reflect spaces or ability  of disks.

For example, the weight of 100G OSD disk is 0.100(100G/1T).

Best wishes,
Vickie

2015-02-10 22:25 GMT+08:00 B L <super.iterator@xxxxxxxxx>:

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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