[Gluster-users] Geo-replication completely broken

Thu Jun 25 07:15:58 UTC 2020

Hi All,

We've got two six node RHEL 7.8 clusters and geo-replication would appear to be completely broken between them. I've deleted the session, removed & recreated pem files, old changlogs/htime (after removing relevant options from volume) and completely set up geo-rep from scratch, but the new session comes up as Initializing, then goes faulty, and starts looping. Volume (on both sides) is a 4 x 2 disperse, running Gluster v6 (RH latest).  Gsyncd reports:

[2020-06-25 07:07:14.701423] I [gsyncdstatus(monitor):248:set_worker_status] GeorepStatus: Worker Status Change status=Initializing...
[2020-06-25 07:07:14.701744] I [monitor(monitor):159:monitor] Monitor: starting gsyncd worker   brick=/rhgs/brick20/brick       slave_node=bxts470194.eu.rabonet.com
[2020-06-25 07:07:14.707997] D [monitor(monitor):230:monitor] Monitor: Worker would mount volume privately
[2020-06-25 07:07:14.757181] I [gsyncd(agent /rhgs/brick20/brick):318:main] <top>: Using session config file    path=/var/lib/glusterd/geo-replication/prd_mx_intvol_bxts470190_prd_mx_intvol/gsyncd.conf
[2020-06-25 07:07:14.758126] D [subcmds(agent /rhgs/brick20/brick):107:subcmd_agent] <top>: RPC FD      rpc_fd='5,12,11,10'
[2020-06-25 07:07:14.758627] I [changelogagent(agent /rhgs/brick20/brick):72:__init__] ChangelogAgent: Agent listining...
[2020-06-25 07:07:14.764234] I [gsyncd(worker /rhgs/brick20/brick):318:main] <top>: Using session config file   path=/var/lib/glusterd/geo-replication/prd_mx_intvol_bxts470190_prd_mx_intvol/gsyncd.conf
[2020-06-25 07:07:14.779409] I [resource(worker /rhgs/brick20/brick):1386:connect_remote] SSH: Initializing SSH connection between master and slave...
[2020-06-25 07:07:14.841793] D [repce(worker /rhgs/brick20/brick):195:push] RepceClient: call 6799:140380783982400:1593068834.84 __repce_version__() ...
[2020-06-25 07:07:16.148725] D [repce(worker /rhgs/brick20/brick):215:__call__] RepceClient: call 6799:140380783982400:1593068834.84 __repce_version__ -> 1.0
[2020-06-25 07:07:16.148911] D [repce(worker /rhgs/brick20/brick):195:push] RepceClient: call 6799:140380783982400:1593068836.15 version() ...
[2020-06-25 07:07:16.149574] D [repce(worker /rhgs/brick20/brick):215:__call__] RepceClient: call 6799:140380783982400:1593068836.15 version -> 1.0
[2020-06-25 07:07:16.149735] D [repce(worker /rhgs/brick20/brick):195:push] RepceClient: call 6799:140380783982400:1593068836.15 pid() ...
[2020-06-25 07:07:16.150588] D [repce(worker /rhgs/brick20/brick):215:__call__] RepceClient: call 6799:140380783982400:1593068836.15 pid -> 30703
[2020-06-25 07:07:16.150747] I [resource(worker /rhgs/brick20/brick):1435:connect_remote] SSH: SSH connection between master and slave established.     duration=1.3712
[2020-06-25 07:07:16.150819] I [resource(worker /rhgs/brick20/brick):1105:connect] GLUSTER: Mounting gluster volume locally...
[2020-06-25 07:07:16.265860] D [resource(worker /rhgs/brick20/brick):879:inhibit] DirectMounter: auxiliary glusterfs mount in place
[2020-06-25 07:07:17.272511] D [resource(worker /rhgs/brick20/brick):953:inhibit] DirectMounter: auxiliary glusterfs mount prepared
[2020-06-25 07:07:17.272708] I [resource(worker /rhgs/brick20/brick):1128:connect] GLUSTER: Mounted gluster volume      duration=1.1218
[2020-06-25 07:07:17.272794] I [subcmds(worker /rhgs/brick20/brick):84:subcmd_worker] <top>: Worker spawn successful. Acknowledging back to monitor
[2020-06-25 07:07:17.272973] D [master(worker /rhgs/brick20/brick):104:gmaster_builder] <top>: setting up change detection mode mode=xsync
[2020-06-25 07:07:17.273063] D [monitor(monitor):273:monitor] Monitor: worker(/rhgs/brick20/brick) connected
[2020-06-25 07:07:17.273678] D [master(worker /rhgs/brick20/brick):104:gmaster_builder] <top>: setting up change detection mode mode=changelog
[2020-06-25 07:07:17.274224] D [master(worker /rhgs/brick20/brick):104:gmaster_builder] <top>: setting up change detection mode mode=changeloghistory
[2020-06-25 07:07:17.276484] D [repce(worker /rhgs/brick20/brick):195:push] RepceClient: call 6799:140380783982400:1593068837.28 version() ...
[2020-06-25 07:07:17.276916] D [repce(worker /rhgs/brick20/brick):215:__call__] RepceClient: call 6799:140380783982400:1593068837.28 version -> 1.0
[2020-06-25 07:07:17.277009] D [master(worker /rhgs/brick20/brick):777:setup_working_dir] _GMaster: changelog working dir /var/lib/misc/gluster/gsyncd/prd_mx_intvol_bxts470190_prd_mx_intvol/rhgs-brick20-brick
[2020-06-25 07:07:17.277098] D [repce(worker /rhgs/brick20/brick):195:push] RepceClient: call 6799:140380783982400:1593068837.28 init() ...
[2020-06-25 07:07:17.292944] D [repce(worker /rhgs/brick20/brick):215:__call__] RepceClient: call 6799:140380783982400:1593068837.28 init -> None
[2020-06-25 07:07:17.293097] D [repce(worker /rhgs/brick20/brick):195:push] RepceClient: call 6799:140380783982400:1593068837.29 register('/rhgs/brick20/brick', '/var/lib/misc/gluster/gsyncd/prd_mx_intvol_bxts470190_prd_mx_intvol/rhgs-brick20-brick', '/var/log/glusterfs/geo-replication/prd_mx_intvol_bxts470190_prd_mx_intvol/changes-rhgs-brick20-brick.log', 8, 5) ...
[2020-06-25 07:07:19.296294] E [repce(agent /rhgs/brick20/brick):121:worker] <top>: call failed:
Traceback (most recent call last):
  File "/usr/libexec/glusterfs/python/syncdaemon/repce.py", line 117, in worker
    res = getattr(self.obj, rmeth)(*in_data[2:])
  File "/usr/libexec/glusterfs/python/syncdaemon/changelogagent.py", line 40, in register
    return Changes.cl_register(cl_brick, cl_dir, cl_log, cl_level, retries)
  File "/usr/libexec/glusterfs/python/syncdaemon/libgfchangelog.py", line 46, in cl_register
    cls.raise_changelog_err()
  File "/usr/libexec/glusterfs/python/syncdaemon/libgfchangelog.py", line 30, in raise_changelog_err
    raise ChangelogException(errn, os.strerror(errn))
ChangelogException: [Errno 2] No such file or directory
[2020-06-25 07:07:19.297161] E [repce(worker /rhgs/brick20/brick):213:__call__] RepceClient: call failed        call=6799:140380783982400:1593068837.29 method=register error=ChangelogException
[2020-06-25 07:07:19.297338] E [resource(worker /rhgs/brick20/brick):1286:service_loop] GLUSTER: Changelog register failed      error=[Errno 2] No such file or directory
[2020-06-25 07:07:19.315074] I [repce(agent /rhgs/brick20/brick):96:service_loop] RepceServer: terminating on reaching EOF.
[2020-06-25 07:07:20.275701] I [monitor(monitor):280:monitor] Monitor: worker died in startup phase     brick=/rhgs/brick20/brick
[2020-06-25 07:07:20.277383] I [gsyncdstatus(monitor):248:set_worker_status] GeorepStatus: Worker Status Change status=Faulty

We've done everything we can think of, including an "strace -f" on the pid, and we can't really find anything. I'm about to lose the last of my hair over this, so does anyone have any ideas at all? We've even removed the entire slave vol and rebuilt it.

Thanks
Rob

Rob Quagliozzi
Specialised Application Support

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