cephfs failed to rdlock, waiting

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Hi,

currently some productive stuff is down, because it can not be accessed
through cephfs.

Client server restart, did not help.
Cluster restart, did not help.

Only ONE directory inside cephfs has this issue.

All other directories are working fine.


MDS Server: Kernel 4.5.4
client server: Kernel 4.5.4
ceph version 10.2.2

# ceph fs dump
dumped fsmap epoch 92
e92
enable_multiple, ever_enabled_multiple: 0,0
compat: compat={},rocompat={},incompat={1=base v0.20,2=client writeable
ranges,3=default file layouts on dirs,4=dir inode in separate
object,5=mds uses versioned encoding,6=dirfrag is stored in omap,8=file
layout v2}

Filesystem 'ceph-gen2' (2)
fs_name ceph-gen2
epoch   92
flags   0
created 2016-06-11 21:53:02.142649
modified        2016-06-14 11:09:16.783356
tableserver     0
root    0
session_timeout 60
session_autoclose       300
max_file_size   1099511627776
last_failure    0
last_failure_osd_epoch  2164
compat  compat={},rocompat={},incompat={1=base v0.20,2=client writeable
ranges,3=default file layouts on dirs,4=dir inode in separate
object,5=mds uses versioned encoding,6=dirfrag is stored in omap,8=file
layout v2}
max_mds 1
in      0
up      {0=234109}
failed
damaged
stopped
data_pools      4
metadata_pool   5
inline_data     disabled
234109: 10.0.0.11:6801/22255 'cephmon1' mds.0.89 up:active seq 250


Standby daemons:

204171: 10.0.0.13:6800/19434 'cephmon3' mds.-1.0 up:standby seq 1


ceph --admin-daemon ceph-mds.cephmon1.asok dump_ops_in_flight
{
    "ops": [
        {
            "description": "client_request(client.204153:432 getattr
pAsLsXsFs #10000001432 2016-07-25 21:57:30.697894 RETRY=2)",
            "initiated_at": "2016-07-26 04:24:05.528832",
            "age": 816.092461,
            "duration": 816.092528,
            "type_data": [
                "failed to rdlock, waiting",
                "client.204153:432",
                "client_request",
                {
                    "client": "client.204153",
                    "tid": 432
                },
                [
                    {
                        "time": "2016-07-26 04:24:05.528832",
                        "event": "initiated"
                    },
                    {
                        "time": "2016-07-26 04:24:07.613779",
                        "event": "failed to rdlock, waiting"
                    }
                ]
            ]
        }
    ],
    "num_ops": 1
}


2016-07-26 04:32:09.355503 7ffb331ca700  0 log_channel(cluster) log
[WRN] : 1 slow requests, 1 included below; oldest blocked for >
483.826590 secs

2016-07-26 04:32:09.355531 7ffb331ca700  0 log_channel(cluster) log
[WRN] : slow request 483.826590 seconds old, received at 2016-07-26
04:24:05.528832: client_request(client.204153:432 getattr pAsLsXsFs
#10000001432 2016-07-25 21:57:30.697894 RETRY=2) currently failed to
rdlock, waiting


Any idea ? :(

-- 
Mit freundlichen Gruessen / Best regards

Oliver Dzombic
IP-Interactive

mailto:info@xxxxxxxxxxxxxxxxx

Anschrift:

IP Interactive UG ( haftungsbeschraenkt )
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63571 Gelnhausen

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UST ID: DE274086107

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