Re: Troubleshooting rgw bucket list

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Hi,

this bucket only has 13389 objects, so the index size shouldn't be a
problem. Also, on the same cluster we have an other bucket with 1200543
objects (but no versioning configured), which has no issues.

when we run a radosgw-admin bucket --check (--fix), nothing seems to be
happening. Putting an strace on the process shows a lot of lines like these:
[pid 99372] futex(0x2d730d4, FUTEX_WAIT_PRIVATE, 156619, NULL
<unfinished ...>
[pid 99385] futex(0x2da9410, FUTEX_WAIT_PRIVATE, 2, NULL <unfinished ...>
[pid 99371] futex(0x2da9410, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
[pid 99385] <... futex resumed> )       = -1 EAGAIN (Resource
temporarily unavailable)
[pid 99371] <... futex resumed> )       = 0

but no errors in the ceph logs or health warnings.

r,
Sam

On 28-08-15 17:49, Ben Hines wrote:
> How many objects in the bucket?
>
> RGW has problems with index size once number of objects gets into the
> 900000+ level. The buckets need to be recreated with 'sharded bucket
> indexes' on:
>
> rgw override bucket index max shards = 23
>
> You could also try repairing the index with:
>
>  radosgw-admin bucket check --fix --bucket=<bucketname>
>
> -Ben
>
> On Fri, Aug 28, 2015 at 8:38 AM, Sam Wouters <sam@xxxxxxxxx> wrote:
>> Hi,
>>
>> we have a rgw bucket (with versioning) where PUT and GET operations for
>> specific objects succeed,  but retrieving an object list fails.
>> Using python-boto, after a timeout just gives us an 500 internal error;
>> radosgw-admin just hangs.
>> Also a radosgw-admin bucket check just seems to hang...
>>
>> ceph version is 0.94.3 but this also was happening with 0.94.2, we
>> quietly hoped upgrading would fix but it didn't...
>>
>> r,
>> Sam
>> _______________________________________________
>> ceph-users mailing list
>> ceph-users@xxxxxxxxxxxxxx
>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

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