On Wed, Feb 18, 2015 at 9:09 PM, Brian Rak <[email protected]> wrote:
>> What does your crushmap look like (ceph osd getcrushmap -o
>> /tmp/crushmap; crushtool -d /tmp/crushmap)? Does your placement logic
>> prevent Ceph from selecting an OSD for the third replica?
>>
>> Cheers,
>> Florian
>
>
> I have 5 hosts, and it's configured like this:
That's not the full crushmap, so I'm a bit reduced to guessing...
> root default {
> id -1 # do not change unnecessarily
> # weight 204.979
> alg straw
> hash 0 # rjenkins1
> item osd01 weight 12.670
> item osd02 weight 14.480
> item osd03 weight 14.480
> item osd04 weight 79.860
> item osd05 weight 83.490
Whence the large weight difference? Are osd04 and osd05 really that
much bigger in disk space?
> rule replicated_ruleset {
> ruleset 0
> type replicated
> min_size 1
> max_size 10
> step take default
> step chooseleaf firstn 0 type host
> step emit
> }
>
> This should not be preventing the assignment (AFAIK). Currently the PG is
> on osd01 and osd05.
Just checking, sure you're not running short on space (close to 90%
utilization) on one of your OSD filesystems?
Cheers,
Florian
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