Re: Troubleshooting rgw bucket list

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Hi,

see inline

On 01-09-15 20:14, Yehuda Sadeh-Weinraub wrote:
> I assume you filtered the log by thread? I don't see the response
> messages. For the bucket check you can run radosgw-admin with
> --log-to-stderr.
nothing is logged to the console when I do that
>
> Can you also set 'debug objclass = 20' on the osds? You can do it by:
>
> $ ceph tell osd.\* injectargs --debug-objclass 20
this continuously prints "20 <cls> cls/rgw/cls_rgw.cc:460: entry
abc_econtract/data/6smuz2ysavvxbygng34tgusyse[] is not valid" on osd.0
>
> Also, it'd be interesting to get the following:
>
> $ radosgw-admin bi list --bucket=<bucket name>
> --object=abc_econtract/data/6shflrwbwwcm6dsemrpjit2li3v913iad1EZQ3.S6Prb-NXLvfQRlaWC5nBYp5
this gives me an empty array:
[
]
but we did a trim of the bilog a while ago cause a lot entries regarding
objects that were already removed from the bucket kept on syncing with
the sync agent, causing a lot of delete_markers at the replication site.

The object in the error above from the osd log, gives the following:
# radosgw-admin --log-to-stderr -n client.radosgw.be-east-1 bi list
--bucket=aws-cmis-prod
--object=abc_econtract/data/6smuz2ysavvxbygng34tgusyse
[
    {
        "type": "plain",
        "idx": "abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse",
        "entry": {
            "name": "abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse",
            "instance": "",
            "ver": {
                "pool": -1,
                "epoch": 0
            },
            "locator": "",
            "exists": "false",
            "meta": {
                "category": 0,
                "size": 0,
                "mtime": "0.000000",
                "etag": "",
                "owner": "",
                "owner_display_name": "",
                "content_type": "",
                "accounted_size": 0
            },
            "tag": "",
            "flags": 8,
            "pending_map": [],
            "versioned_epoch": 0
        }
    },
    {
        "type": "plain",
        "idx":
"abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse\u0000v913\u0000iRQZUR76UdeymR-PGaw6sbCHMCOcaovu",
        "entry": {
            "name": "abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse",
            "instance": "RQZUR76UdeymR-PGaw6sbCHMCOcaovu",
            "ver": {
                "pool": 23,
                "epoch": 9680
            },
            "locator": "",
            "exists": "true",
            "meta": {
                "category": 1,
                "size": 103410,
                "mtime": "2015-08-07 17:57:32.000000Z",
                "etag": "6c67f5e6cb4aa63f4fa26a3b94d19d3a",
                "owner": "aws-cmis-prod",
                "owner_display_name": "AWS-CMIS prod user",
                "content_type": "application\/pdf",
                "accounted_size": 103410
            },
            "tag": "be-east.34319.4520377",
            "flags": 3,
            "pending_map": [],
            "versioned_epoch": 2
        }
    },
    {
        "type": "instance",
        "idx":
"�1000_abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse\u0000iRQZUR76UdeymR-PGaw6sbCHMCOcaovu",
        "entry": {
            "name": "abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse",
            "instance": "RQZUR76UdeymR-PGaw6sbCHMCOcaovu",
            "ver": {
                "pool": 23,
                "epoch": 9680
            },
            "locator": "",
            "exists": "true",
            "meta": {
                "category": 1,
                "size": 103410,
                "mtime": "2015-08-07 17:57:32.000000Z",
                "etag": "6c67f5e6cb4aa63f4fa26a3b94d19d3a",
                "owner": "aws-cmis-prod",
                "owner_display_name": "AWS-CMIS prod user",
                "content_type": "application\/pdf",
                "accounted_size": 103410
            },
            "tag": "be-east.34319.4520377",
            "flags": 3,
            "pending_map": [],
            "versioned_epoch": 2
        }
    },
    {
        "type": "olh",
        "idx": "�1001_abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse",
        "entry": {
            "key": {
                "name": "abc_econtract\/data\/6smuz2ysavvxbygng34tgusyse",
                "instance": "RQZUR76UdeymR-PGaw6sbCHMCOcaovu"
            },
            "delete_marker": "false",
            "epoch": 2,
            "pending_log": [],
            "tag": "3ejreihlq1045d212goxvdlry31nbdde",
            "exists": "true",
            "pending_removal": "false"
        }
    }

]
>
>
> Thanks,
> Yehuda
much appreciating the care...
Sam
>
> On Tue, Sep 1, 2015 at 10:44 AM, Sam Wouters <sam@xxxxxxxxx> wrote:
>> not sure where I can find the logs for the bucket check, I can't really
>> filter them out in the radosgw log.
>>
>> -Sam
>>
>> On 01-09-15 19:25, Sam Wouters wrote:
>>> It looks like it, this is what shows in the logs after bumping the debug
>>> and requesting a bucket list.
>>>
>>> 2015-09-01 17:14:53.008620 7fccb17ca700 10 cls_bucket_list
>>> aws-cmis-prod(@{i=.be-east.rgw.buckets.index}.be-east.rgw.buckets[be-east.5436.1])
>>> start
>>> abc_econtract/data/6shflrwbwwcm6dsemrpjit2li3v913iad1EZQ3.S6Prb-NXLvfQRlaWC5nBYp5[]
>>> num_entries 1
>>> 2015-09-01 17:14:53.008629 7fccb17ca700 20 reading from
>>> .be-east.rgw:.bucket.meta.aws-cmis-prod:be-east.5436.1
>>> 2015-09-01 17:14:53.008636 7fccb17ca700 20 get_obj_state:
>>> rctx=0x7fccb17c84d0
>>> obj=.be-east.rgw:.bucket.meta.aws-cmis-prod:be-east.5436.1
>>> state=0x7fcde01a4060 s->prefetch_data=0
>>> 2015-09-01 17:14:53.008640 7fccb17ca700 10 cache get:
>>> name=.be-east.rgw+.bucket.meta.aws-cmis-prod:be-east.5436.1 : hit
>>> 2015-09-01 17:14:53.008645 7fccb17ca700 20 get_obj_state: s->obj_tag was
>>> set empty
>>> 2015-09-01 17:14:53.008647 7fccb17ca700 10 cache get:
>>> name=.be-east.rgw+.bucket.meta.aws-cmis-prod:be-east.5436.1 : hit
>>> 2015-09-01 17:14:53.008675 7fccb17ca700  1 -- 10.11.4.105:0/1109243 -->
>>> 10.11.4.105:6801/39085 -- osd_op(client.55506.0:435874
>>> ...
>>> .dir.be-east.5436.1 [call rgw.bucket_list] 26.7d78fc84
>>> ack+read+known_if_redirected e255) v5 -- ?+0 0x7fcde01a0540 con 0x3a2d870
>>>
>>> On 01-09-15 17:11, Yehuda Sadeh-Weinraub wrote:
>>>> Can you bump up debug (debug rgw = 20, debug ms = 1), and see if the
>>>> operations (bucket listing and bucket check) go into some kind of
>>>> infinite loop?
>>>>
>>>> Yehuda
>>>>
>>>> On Tue, Sep 1, 2015 at 1:16 AM, Sam Wouters <sam@xxxxxxxxx> wrote:
>>>>> Hi, I've started the bucket --check --fix on friday evening and it's
>>>>> still running. 'ceph -s' shows the cluster health as OK, I don't know if
>>>>> there is anything else I could check? Is there a way of finding out if
>>>>> its actually doing something?
>>>>>
>>>>> We only have this issue on the one bucket with versioning enabled, I
>>>>> can't get rid of the feeling it has something todo with that. The
>>>>> "underscore bug" is also still present on that bucket
>>>>> (http://tracker.ceph.com/issues/12819). Not sure if thats related in any
>>>>> way.
>>>>> Are there any alternatives, as for example copy all the objects into a
>>>>> new bucket without versioning? Simple way would be to list the objects
>>>>> and copy them to a new bucket, but bucket listing is not working so...
>>>>>
>>>>> -Sam
>>>>>
>>>>>
>>>>> On 31-08-15 10:47, Gregory Farnum wrote:
>>>>>> This generally shouldn't be a problem at your bucket sizes. Have you
>>>>>> checked that the cluster is actually in a healthy state? The sleeping
>>>>>> locks are normal but should be getting woken up; if they aren't it
>>>>>> means the object access isn't working for some reason. A down PG or
>>>>>> something would be the simplest explanation.
>>>>>> -Greg
>>>>>>
>>>>>> On Fri, Aug 28, 2015 at 6:52 PM, Sam Wouters <sam@xxxxxxxxx> wrote:
>>>>>>> Ok, maybe I'm to impatient. It would be great if there were some verbose
>>>>>>> or progress logging of the radosgw-admin tool.
>>>>>>> I will start a check and let it run over the weekend.
>>>>>>>
>>>>>>> tnx,
>>>>>>> Sam
>>>>>>>
>>>>>>> On 28-08-15 18:16, Sam Wouters wrote:
>>>>>>>> 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
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>>>>>>>>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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