[Gluster-users] Geo-Replication Stuck In "Hybrid Crawl"

Mon Sep 13 22:06:21 UTC 2021

Hi,

Yes, I have checked both
/var/log/gluster/geo-replication/<primaryvol_slavenode_slavevol> (on
primary nodes) and
/var/log/gluster/geo-replication-slaves/<primaryvol_slavenode_slavevol> (on
slave node) but not finding any relevant information despite the fact that
I've set all log levels to DEBUG. Looked at gsyncd.logs and bricks logs. At
this point, I'm not even certain geo-replication is actually working. df
command on slave indicates that the volume's brick is being filled with
data but can't figure out how to confirm that things are actually working
but just slow. I have deleted the geo-replication session, reset the bricks
and started a new session but still no luck. Data on volume is less than 20
GB but process has been stuck in "Hybrid Crawl" for over a week.

*** gsyncd.log on primary ***
[2021-09-13 21:53:08.4801] D [repce(worker /gfs2-data/brick):195:push]
RepceClient: call 25808:140134674573056:1631569988.0047505
keep_alive({'version': (1, 0), 'uuid':
'560520f1-d06a-47d9-af6d-153c68016e82', 'retval': 0, 'volume_mark':
(1551463906, 939763), 'timeout': 1631570108},) ...
[2021-09-13 21:53:08.40326] D [repce(worker /gfs2-data/brick):215:__call__]
RepceClient: call 25808:140134674573056:1631569988.0047505 keep_alive -> 23
[2021-09-13 21:53:11.200769] D [master(worker
/gfs2-data/brick):554:crawlwrap] _GMaster: ... crawl #0 done, took 5.043846
seconds
[2021-09-13 21:53:11.237383] D [master(worker
/gfs2-data/brick):578:crawlwrap] _GMaster: Crawl info     cluster_stime=61
       brick_stime=(-1, 0)
[2021-09-13 21:53:16.240783] D [master(worker
/gfs2-data/brick):554:crawlwrap] _GMaster: ... crawl #0 done, took 5.039845
seconds
[2021-09-13 21:53:16.642778] D [master(worker
/gfs2-data/brick):578:crawlwrap] _GMaster: Crawl info     cluster_stime=61
       brick_stime=(-1, 0)
[2021-09-13 21:53:21.647924] D [master(worker
/gfs2-data/brick):554:crawlwrap] _GMaster: ... crawl #0 done, took 5.406957
seconds
[2021-09-13 21:53:21.648072] D [master(worker
/gfs2-data/brick):560:crawlwrap] _GMaster: 0 crawls, 0 turns

*** gsyncd.log on slave *** [MESSAGE KEEPS REPEATING]
{'op': 'META', 'skip_entry': False, 'go':
'.gfid/341e4a74-b783-4d03-b678-13cd83691ca2', 'stat': {'uid': 33, 'gid':
33, 'mode': 16877, 'atime': 1620058938.6504347, 'mtime':
1630466794.4308176}},
{'op': 'META', 'skip_entry': False, 'go':
'.gfid/454dc70d-e57f-4166-b9b1-9dcbc88906ad', 'stat': {'uid': 33, 'gid':
33, 'mode': 16877, 'atime': 1625766157.52317, 'mtime': 1627944976.2114644}},
{'op': 'META', 'skip_entry': False, 'go':
'.gfid/f7a63767-3ec3-444f-8890-f6bdc569317a', 'stat': {'uid': 33, 'gid':
33, 'mode': 16877, 'atime': 1623954033.0488186, 'mtime':
1630506668.4986405}},
{'op': 'META', 'skip_entry': False, 'go':
'.gfid/e52237fc-d8a7-43e6-8e1d-3f66b6e17bed', 'stat': {'uid': 33, 'gid':
33, 'mode': 16877, 'atime': 1623689028.9785645, 'mtime':
1631113995.6731815}}]
[2021-09-13 21:31:51.388329] I [resource(slave
media01/gfs2-data/brick):1098:connect] GLUSTER: Mounting gluster volume
locally...
[2021-09-13 21:31:51.490466] D [resource(slave
media01/gfs2-data/brick):872:inhibit] MountbrokerMounter: auxiliary
glusterfs mount in place
[2021-09-13 21:31:52.579018] D [resource(slave
media01/gfs2-data/brick):939:inhibit] MountbrokerMounter: Lazy umount done:
/var/mountbroker-root/mb_hive/mntWa5v9P
[2021-09-13 21:31:52.579506] D [resource(slave
media01/gfs2-data/brick):946:inhibit] MountbrokerMounter: auxiliary
glusterfs mount prepared
[2021-09-13 21:31:52.579624] I [resource(slave
media01/gfs2-data/brick):1121:connect] GLUSTER: Mounted gluster volume
duration=1.1912
[2021-09-13 21:31:52.580047] I [resource(slave
media01/gfs2-data/brick):1148:service_loop] GLUSTER: slave listening

Regards,

-Boubacar

On Mon, Sep 13, 2021 at 7:53 AM Strahil Nikolov <hunter86_bg at yahoo.com>
wrote:

> Did you check the logs on the primary nodes
> /var/log/gluster/geo-replication/<primaryvol_slavenode_slavevol>/ ?
>
> Best Regards,
> Strahil Nikolov
>
> On Mon, Sep 13, 2021 at 14:55, Boubacar Cisse
> <cboubacar at gmail.com> wrote:
> Currently using gluster 6.10 and have configured geo replication but crawl
> status has been stuck in "Hybrid Crawl" for weeks now. Can't find any
> potential issues in logs and data appears to be transferred even though
> extremely slowly. Any suggestions on what else to look for to help
> troubleshoot this issue? Any help will be appreciated.
>
> root at host01:~# gluster --version
> glusterfs 6.10
> Repository revision: git://git.gluster.org/glusterfs.git
> Copyright (c) 2006-2016 Red Hat, Inc. <https://www.gluster.org/>
> GlusterFS comes with ABSOLUTELY NO WARRANTY.
> It is licensed to you under your choice of the GNU Lesser
> General Public License, version 3 or any later version (LGPLv3
> or later), or the GNU General Public License, version 2 (GPLv2),
> in all cases as published by the Free Software Foundation.
>
>
> root at host01:~# gluster volume geo-replication gfs1 geo-user at host03::gfs1
> status
>
> MASTER NODE    MASTER VOL    MASTER BRICK        SLAVE USER    SLAVE
>                    SLAVE NODE    STATUS     CRAWL STATUS    LAST_SYNCED
>
> -------------------------------------------------------------------------------------------------------------------------------------------------
> host01        gfs1          /gfs1-data/brick    geo-user
>  geo-user at host03::gfs1    host03       Active     Hybrid Crawl    N/A
> host02        gfs1          /gfs1-data/brick    geo-user
>  geo-user at host03::gfs1    host03       Passive    N/A             N/A
>
> Regards
>
> -Boubacar
> ________
>
>
>
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