[Gluster-users] Geo-Replication just won't go past 1TB - half the replication process crashing?
Tony Maro
tonym at evrichart.com
Fri Sep 6 15:40:31 UTC 2013
Correction: Different between the two local bricks is more likely a result
of the ZFS snapshot process I've run on the larger of them.
On Fri, Sep 6, 2013 at 11:39 AM, Tony Maro <tonym at evrichart.com> wrote:
> More stats in case you need them:
>
> Grand total of the /data/docstore1 tree that's being sync'd is about 8.5
> million files.
> About 1 KB of new data has appeared on the destination server since we
> started this discussion yesterday...
>
>
> tony at backup-ds2:~$ df
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/sda1 768989240 1841364 728085452 1% /
> udev 16450080 4 16450076 1% /dev
> tmpfs 6583556 348 6583208 1% /run
> none 5120 0 5120 0% /run/lock
> none 16458888 0 16458888 0% /run/shm
> data 6601579264 0 6601579264 0% /data
> data/docstore1 7651735936 1050156672 6601579264 14% /data/docstore1
> tony at backup-ds2:~$ date
> Thu Sep 5 09:36:24 EDT 2013
>
> tony at backup-ds2:~$ df
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/sda1 768989240 1842524 728084292 1% /
> udev 16450080 4 16450076 1% /dev
> tmpfs 6583556 348 6583208 1% /run
> none 5120 0 5120 0% /run/lock
> none 16458888 0 16458888 0% /run/shm
> data 6601577984 0 6601577984 0% /data
> data/docstore1 7651735808 1050157824 6601577984 14% /data/docstore1
> tony at backup-ds2:~$ date
> Fri Sep 6 11:34:07 EDT 2013
> tony at backup-ds2:~$
>
> The source data I'm attempting to geo-replicate is 3.3 TB. Mirroring
> between the local bricks seems to be working fine. They are within 20KB of
> drive usage between each other for the /data/docstore1 partition. I
> attribute that to the new geo-rep info on gfs6 making it larger by a bit?
> Also the data is constantly changing, so maybe it's a bit of replication
> lag.
>
>
>
> On Fri, Sep 6, 2013 at 11:29 AM, Tony Maro <tonym at evrichart.com> wrote:
>
>> ./evds3 contains 1,262,970 files. No more than 255 files or folders per
>> subdirectory.
>>
>> Network latency is almost nonexistent - the servers are currently jacked
>> into the same switch on a separate network segment for the initial sync:
>>
>> tony at gfs6:~$ ping backup-ds2.gluster
>> PING backup-ds2.gluster (10.200.1.12) 56(84) bytes of data.
>> 64 bytes from backup-ds2.gluster (10.200.1.12): icmp_req=1 ttl=64
>> time=0.245 ms
>> 64 bytes from backup-ds2.gluster (10.200.1.12): icmp_req=2 ttl=64
>> time=0.197 ms
>> 64 bytes from backup-ds2.gluster (10.200.1.12): icmp_req=3 ttl=64
>> time=0.174 ms
>> 64 bytes from backup-ds2.gluster (10.200.1.12): icmp_req=4 ttl=64
>> time=0.221 ms
>> 64 bytes from backup-ds2.gluster (10.200.1.12): icmp_req=5 ttl=64
>> time=0.163 ms
>>
>>
>>
>>
>>
>> On Fri, Sep 6, 2013 at 5:13 AM, Venky Shankar <yknev.shankar at gmail.com>wrote:
>>
>>> From the trace logs it looks like its still crawling (the lgetxattr() on
>>> the master and lgetxattr() on the slave). How many files are under './evds3'
>>> ?
>>>
>>> Further more, what's the latency b/w the two sites?
>>>
>>>
>>> On Thu, Sep 5, 2013 at 11:31 PM, Tony Maro <tonym at evrichart.com> wrote:
>>>
>>>> No rsync process is running. I tested for it several times over 10
>>>> seconds.
>>>>
>>>> Here's the trace on feedback. I put it on TinyPaste instead of in
>>>> everyone's inbox out of courtesy: http://tny.cz/505b09c8
>>>>
>>>> Thanks,
>>>> Tony
>>>>
>>>>
>>>> On Thu, Sep 5, 2013 at 12:24 PM, Venky Shankar <yknev.shankar at gmail.com
>>>> > wrote:
>>>>
>>>>> So, nothing fishy in slave logs too.
>>>>>
>>>>> Debugging this would need more information. Lets start with:
>>>>>
>>>>> 1. Is there any rsync process that is running? (ps auxww | grep rsync)
>>>>>
>>>>> 2. I would need strace logs for the worker process (the process which
>>>>> scans the filesystem and invokes rsync to transfer data). Something like
>>>>> this would do:
>>>>>
>>>>> - get the pid of the worker process
>>>>> # ps auxww | grep feedback (a gsyncd.py python process)
>>>>>
>>>>> - trace the pid above
>>>>> # strace -s 500 -o /tmp/worker.log -f -p <pid>
>>>>>
>>>>> Let the trace run for about 20 seconds. Lets see what's in
>>>>> /tmp/worker.log
>>>>>
>>>>> Thanks,
>>>>> -venky
>>>>>
>>>>>
>>>>> On Thu, Sep 5, 2013 at 7:56 PM, Tony Maro <tonym at evrichart.com> wrote:
>>>>>
>>>>>> Looks like the slave stopped logging things just before the sending
>>>>>> brick did:
>>>>>>
>>>>>> [2013-09-01 14:56:45.13972] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-01 14:56:45.15433] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>> [2013-09-01 15:57:34.592938] I [repce(slave):78:service_loop]
>>>>>> RepceServer: terminating on reaching EOF.
>>>>>> [2013-09-01 15:57:34.593383] I [syncdutils(slave):142:finalize]
>>>>>> <top>: exiting.
>>>>>> [2013-09-01 15:57:45.374301] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-01 15:57:45.375871] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>> [2013-09-01 16:02:09.115976] I [repce(slave):78:service_loop]
>>>>>> RepceServer: terminating on reaching EOF.
>>>>>> [2013-09-01 16:02:09.116446] I [syncdutils(slave):142:finalize]
>>>>>> <top>: exiting.
>>>>>> [2013-09-01 16:02:19.869340] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-01 16:02:19.870598] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>> [2013-09-01 16:32:58.701617] I [repce(slave):78:service_loop]
>>>>>> RepceServer: terminating on reaching EOF.
>>>>>> [2013-09-01 16:32:58.702126] I [syncdutils(slave):142:finalize]
>>>>>> <top>: exiting.
>>>>>> [2013-09-01 16:33:09.456556] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-01 16:33:09.458009] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>> [2013-09-01 21:47:13.442514] I [repce(slave):78:service_loop]
>>>>>> RepceServer: terminating on reaching EOF.
>>>>>> [2013-09-01 21:47:13.442899] I [syncdutils(slave):142:finalize]
>>>>>> <top>: exiting.
>>>>>> [2013-09-01 21:47:24.240978] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-01 21:47:24.242424] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>> [2013-09-02 02:12:14.26339] I [repce(slave):78:service_loop]
>>>>>> RepceServer: terminating on reaching EOF.
>>>>>> [2013-09-02 02:12:14.26809] I [syncdutils(slave):142:finalize] <top>:
>>>>>> exiting.
>>>>>> [2013-09-02 02:12:24.818355] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-02 02:12:24.820008] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>> [2013-09-02 02:16:14.525187] I [repce(slave):78:service_loop]
>>>>>> RepceServer: terminating on reaching EOF.
>>>>>> [2013-09-02 02:16:14.525675] I [syncdutils(slave):142:finalize]
>>>>>> <top>: exiting.
>>>>>> [2013-09-02 02:16:25.263712] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-02 02:16:25.265168] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>> [2013-09-02 02:37:39.315608] I [repce(slave):78:service_loop]
>>>>>> RepceServer: terminating on reaching EOF.
>>>>>> [2013-09-02 02:37:39.316071] I [syncdutils(slave):142:finalize]
>>>>>> <top>: exiting.
>>>>>> [2013-09-02 02:37:50.78136] I [gsyncd(slave):354:main_i] <top>:
>>>>>> syncing: file:///data/docstore1
>>>>>> [2013-09-02 02:37:50.79577] I [resource(slave):453:service_loop]
>>>>>> FILE: slave listening
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Thu, Sep 5, 2013 at 10:09 AM, Venky Shankar <
>>>>>> yknev.shankar at gmail.com> wrote:
>>>>>>
>>>>>>> Could you also provide the slave logs? (log location on the
>>>>>>> slave: /var/log/glusterfs/geo-replication-slaves)
>>>>>>>
>>>>>>> Thanks,
>>>>>>> -venky
>>>>>>>
>>>>>>>
>>>>>>> On Thu, Sep 5, 2013 at 7:29 PM, Tony Maro <tonym at evrichart.com>wrote:
>>>>>>>
>>>>>>>> I'm trying to create a new Geo-Rep of about 3 TB of data
>>>>>>>> currently stored in a 2 brick mirror config. Obviously the geo-rep
>>>>>>>> destination is a third server.
>>>>>>>>
>>>>>>>> This is my 150th attempt. Okay, maybe not that far, but it's
>>>>>>>> pretty darn bad.
>>>>>>>>
>>>>>>>> Replication works fine until I hit around 1TB of data sync'd, then
>>>>>>>> it just stalls. For the past two days it hasn't gone past 1050156672 bytes
>>>>>>>> sync'd to the destination server.
>>>>>>>>
>>>>>>>> I did some digging in the logs and it looks like the brick that's
>>>>>>>> running the geo-rep process thinks it's syncing:
>>>>>>>>
>>>>>>>> [2013-09-05 09:45:37.354831] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/00000863.enc ...
>>>>>>>> [2013-09-05 09:45:37.358669] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/0000083b.enc ...
>>>>>>>> [2013-09-05 09:45:37.362251] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/0000087b.enc ...
>>>>>>>> [2013-09-05 09:45:37.366027] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/00000834.enc ...
>>>>>>>> [2013-09-05 09:45:37.369752] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/00000845.enc ...
>>>>>>>> [2013-09-05 09:45:37.373528] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/00000864.enc ...
>>>>>>>> [2013-09-05 09:45:37.377037] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/0000087f.enc ...
>>>>>>>> [2013-09-05 09:45:37.391432] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/00000897.enc ...
>>>>>>>> [2013-09-05 09:45:37.395059] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/00000829.enc ...
>>>>>>>> [2013-09-05 09:45:37.398725] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/00000816.enc ...
>>>>>>>> [2013-09-05 09:45:37.402559] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/000008cc.enc ...
>>>>>>>> [2013-09-05 09:45:37.406450] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/000008d2.enc ...
>>>>>>>> [2013-09-05 09:45:37.410310] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/000008df.enc ...
>>>>>>>> [2013-09-05 09:45:37.414344] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/00/00/08/000008bd.enc ...
>>>>>>>> [2013-09-05 09:45:37.438173] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/volume.info ...
>>>>>>>> [2013-09-05 09:45:37.441675] D [master:386:crawl] GMaster: syncing
>>>>>>>> ./evds3/Sky_Main_66/volume.enc ...
>>>>>>>>
>>>>>>>> But, *those files never appear on the destination server,* however
>>>>>>>> the containing folders are there, just empty.
>>>>>>>>
>>>>>>>> Also, the other log file (...gluster.log) in the geo-replication
>>>>>>>> log folder that matches the destination stopped updating when the syncing
>>>>>>>> stopped apparently. It's last timestamp is from the 2nd, which is the last
>>>>>>>> time data transferred.
>>>>>>>>
>>>>>>>> The last bit from that log file is as such:
>>>>>>>>
>>>>>>>>
>>>>>>>> +------------------------------------------------------------------------------+
>>>>>>>> [2013-09-02 06:37:50.109730] I [rpc-clnt.c:1654:rpc_clnt_reconfig]
>>>>>>>> 0-docstore1-client-1: changing port to 24009 (from 0)
>>>>>>>> [2013-09-02 06:37:50.109857] I [rpc-clnt.c:1654:rpc_clnt_reconfig]
>>>>>>>> 0-docstore1-client-0: changing port to 24009 (from 0)
>>>>>>>> [2013-09-02 06:37:54.097468] I
>>>>>>>> [client-handshake.c:1614:select_server_supported_programs]
>>>>>>>> 0-docstore1-client-1: Using Program GlusterFS 3.3.2, Num (1298437), Version
>>>>>>>> (330)
>>>>>>>> [2013-09-02 06:37:54.097973] I
>>>>>>>> [client-handshake.c:1411:client_setvolume_cbk] 0-docstore1-client-1:
>>>>>>>> Connected to 10.200.1.6:24009, attached to remote volume
>>>>>>>> '/data/docstore1'.
>>>>>>>> [2013-09-02 06:37:54.098005] I
>>>>>>>> [client-handshake.c:1423:client_setvolume_cbk] 0-docstore1-client-1: Server
>>>>>>>> and Client lk-version numbers are not same, reopening the fds
>>>>>>>> [2013-09-02 06:37:54.098094] I [afr-common.c:3685:afr_notify]
>>>>>>>> 0-docstore1-replicate-0: Subvolume 'docstore1-client-1' came back up; going
>>>>>>>> online.
>>>>>>>> [2013-09-02 06:37:54.098274] I
>>>>>>>> [client-handshake.c:453:client_set_lk_version_cbk] 0-docstore1-client-1:
>>>>>>>> Server lk version = 1
>>>>>>>> [2013-09-02 06:37:54.098619] I
>>>>>>>> [client-handshake.c:1614:select_server_supported_programs]
>>>>>>>> 0-docstore1-client-0: Using Program GlusterFS 3.3.2, Num (1298437), Version
>>>>>>>> (330)
>>>>>>>> [2013-09-02 06:37:54.099191] I
>>>>>>>> [client-handshake.c:1411:client_setvolume_cbk] 0-docstore1-client-0:
>>>>>>>> Connected to 10.200.1.5:24009, attached to remote volume
>>>>>>>> '/data/docstore1'.
>>>>>>>> [2013-09-02 06:37:54.099222] I
>>>>>>>> [client-handshake.c:1423:client_setvolume_cbk] 0-docstore1-client-0: Server
>>>>>>>> and Client lk-version numbers are not same, reopening the fds
>>>>>>>> [2013-09-02 06:37:54.105891] I
>>>>>>>> [fuse-bridge.c:4191:fuse_graph_setup] 0-fuse: switched to graph 0
>>>>>>>> [2013-09-02 06:37:54.106039] I
>>>>>>>> [client-handshake.c:453:client_set_lk_version_cbk] 0-docstore1-client-0:
>>>>>>>> Server lk version = 1
>>>>>>>> [2013-09-02 06:37:54.106179] I [fuse-bridge.c:3376:fuse_init]
>>>>>>>> 0-glusterfs-fuse: FUSE inited with protocol versions: glusterfs 7.13 kernel
>>>>>>>> 7.17
>>>>>>>> [2013-09-02 06:37:54.108766] I
>>>>>>>> [afr-common.c:2022:afr_set_root_inode_on_first_lookup]
>>>>>>>> 0-docstore1-replicate-0: added root inode
>>>>>>>>
>>>>>>>>
>>>>>>>> This is driving me nuts - I've been working on getting
>>>>>>>> Geo-Replication working for over 2 months now without any success.
>>>>>>>>
>>>>>>>> Status on the geo-rep shows OK:
>>>>>>>>
>>>>>>>> root at gfs6:~# gluster volume geo-replication docstore1
>>>>>>>> ssh://root@backup-ds2.gluster:/data/docstore1 status
>>>>>>>> MASTER SLAVE
>>>>>>>> STATUS
>>>>>>>>
>>>>>>>> --------------------------------------------------------------------------------
>>>>>>>> docstore1 ssh://root@backup-ds2.gluster:/data/docstore1
>>>>>>>> OK
>>>>>>>> root at gfs6:~#
>>>>>>>>
>>>>>>>> Here's the config:
>>>>>>>>
>>>>>>>> root at gfs6:~# gluster volume geo-replication docstore1
>>>>>>>> ssh://root@backup-ds2.gluster:/data/docstore1 config
>>>>>>>> log_level: DEBUG
>>>>>>>> gluster_log_file:
>>>>>>>> /var/log/glusterfs/geo-replication/docstore1/ssh%3A%2F%2Froot%4010.200.1.12%3Afile%3A%2F%2F%2Fdata%2Fdocstore1.gluster.log
>>>>>>>> ssh_command: ssh -oPasswordAuthentication=no
>>>>>>>> -oStrictHostKeyChecking=no -i /var/lib/glusterd/geo-replication/secret.pem
>>>>>>>> session_owner: 24f8c92d-723e-4513-9593-40ef4b7e766a
>>>>>>>> remote_gsyncd: /usr/lib/glusterfs/glusterfs/gsyncd
>>>>>>>> state_file:
>>>>>>>> /var/lib/glusterd/geo-replication/docstore1/ssh%3A%2F%2Froot%4010.200.1.12%3Afile%3A%2F%2F%2Fdata%2Fdocstore1.status
>>>>>>>> gluster_command_dir: /usr/sbin/
>>>>>>>> pid_file:
>>>>>>>> /var/lib/glusterd/geo-replication/docstore1/ssh%3A%2F%2Froot%4010.200.1.12%3Afile%3A%2F%2F%2Fdata%2Fdocstore1.pid
>>>>>>>> log_file:
>>>>>>>> /var/log/glusterfs/geo-replication/docstore1/ssh%3A%2F%2Froot%4010.200.1.12%3Afile%3A%2F%2F%2Fdata%2Fdocstore1.log
>>>>>>>> gluster_params: xlator-option=*-dht.assert-no-child-down=true
>>>>>>>> root at gfs6:~#
>>>>>>>>
>>>>>>>> I'm running Ubuntu packages 3.3.2-ubuntu1-precise2 from the ppa.
>>>>>>>> Any ideas for why it's stalling?
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> Gluster-users mailing list
>>>>>>>> Gluster-users at gluster.org
>>>>>>>> http://supercolony.gluster.org/mailman/listinfo/gluster-users
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Thanks,
>>>>>>
>>>>>> *Tony Maro*
>>>>>> Chief Information Officer
>>>>>> EvriChart • www.evrichart.com
>>>>>> Advanced Records Management
>>>>>> Office | 888.801.2020 • 304.536.1290
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> Gluster-users mailing list
>>>>>> Gluster-users at gluster.org
>>>>>> http://supercolony.gluster.org/mailman/listinfo/gluster-users
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Thanks,
>>>>
>>>> *Tony Maro*
>>>> Chief Information Officer
>>>> EvriChart • www.evrichart.com
>>>> Advanced Records Management
>>>> Office | 888.801.2020 • 304.536.1290
>>>>
>>>>
>>>
>>
>>
>> --
>> Thanks,
>>
>> *Tony Maro*
>> Chief Information Officer
>> EvriChart • www.evrichart.com
>> Advanced Records Management
>> Office | 888.801.2020 • 304.536.1290
>>
>>
>
>
> --
> Thanks,
>
> *Tony Maro*
> Chief Information Officer
> EvriChart • www.evrichart.com
> Advanced Records Management
> Office | 888.801.2020 • 304.536.1290
>
>
--
Thanks,
*Tony Maro*
Chief Information Officer
EvriChart • www.evrichart.com
Advanced Records Management
Office | 888.801.2020 • 304.536.1290
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