Can I please get some help in understanding the issue mentioned ?

From: Anand Malagi
Sent: Monday, December 31, 2018 1:39 PM
To: 'Anand Malagi' <[email protected]>; [email protected]
Subject: RE: replace-brick operation issue...

Can someone please help here ??

From: 
[email protected]<mailto:[email protected]> 
<[email protected]<mailto:[email protected]>> 
On Behalf Of Anand Malagi
Sent: Friday, December 21, 2018 3:44 PM
To: [email protected]<mailto:[email protected]>
Subject: [Gluster-users] replace-brick operation issue...

Hi Friends,

Please note that, when replace-brick operation was tried for one of the bad 
brick present in distributed disperse EC volume, the command actually failed 
but the brick daemon of new replaced brick came online.
Please help to understand in what situations this issue may arise and proposed 
solution if possible ? :


glusterd.log  :



[2018-12-11 11:04:43.774120] I [MSGID: 106503] 
[glusterd-replace-brick.c:147:__glusterd_handle_replace_brick] 0-management: 
Received replace-brick commit force request.

[2018-12-11 11:04:44.784578] I [MSGID: 106504] 
[glusterd-utils.c:13079:rb_update_dstbrick_port] 0-glusterd: adding dst-brick 
port no 0

...

[2018-12-11 11:04:46.457537] E [MSGID: 106029] 
[glusterd-utils.c:7981:glusterd_brick_signal] 0-glusterd: Unable to open 
pidfile: 
/var/run/gluster/vols/AM6_HyperScale/am6sv0004sds.saipemnet.saipem.intranet-ws-disk3-ws_brick.pid
 [No such file or directory]

[2018-12-11 11:04:53.089810] I [glusterd-utils.c:5876:glusterd_brick_start] 
0-management: starting a fresh brick process for brick /ws/disk15/ws_brick

...

[2018-12-11 11:04:53.117935] W [socket.c:595:__socket_rwv] 0-socket.management: 
writev on 127.0.0.1:864 failed (Broken pipe)

[2018-12-11 11:04:54.014023] I [socket.c:2465:socket_event_handler] 
0-transport: EPOLLERR - disconnecting now

[2018-12-11 11:04:54.273190] I [MSGID: 106005] 
[glusterd-handler.c:6120:__glusterd_brick_rpc_notify] 0-management: Brick 
am6sv0004sds.saipemnet.saipem.intranet:/ws/disk15/ws_brick has disconnected 
from glusterd.

[2018-12-11 11:04:54.297603] E [MSGID: 106116] 
[glusterd-mgmt.c:135:gd_mgmt_v3_collate_errors] 0-management: Commit failed on 
am6sv0006sds.saipemnet.saipem.intranet. Please check log file for details.

[2018-12-11 11:04:54.350666] I [MSGID: 106143] 
[glusterd-pmap.c:278:pmap_registry_bind] 0-pmap: adding brick 
/ws/disk15/ws_brick on port 49164

[2018-12-11 11:05:01.137449] E [MSGID: 106123] 
[glusterd-mgmt.c:1519:glusterd_mgmt_v3_commit] 0-management: Commit failed on 
peers

[2018-12-11 11:05:01.137496] E [MSGID: 106123] 
[glusterd-replace-brick.c:660:glusterd_mgmt_v3_initiate_replace_brick_cmd_phases]
 0-management: Commit Op Failed

[2018-12-11 11:06:12.275867] I [MSGID: 106499] 
[glusterd-handler.c:4370:__glusterd_handle_status_volume] 0-management: 
Received status volume req for volume AM6_HyperScale

[2018-12-11 13:35:51.529365] I [MSGID: 106499] 
[glusterd-handler.c:4370:__glusterd_handle_status_volume] 0-management: 
Received status volume req for volume AM6_HyperScale



gluster volume replace-brick AM6_HyperScale 
am6sv0004sds.saipemnet.saipem.intranet:/ws/disk3/ws_brick 
am6sv0004sds.saipemnet.saipem.intranet:/ws/disk15/ws_brick commit force
Replace brick failure, brick [/ws/disk3], volume [AM6_HyperScale]

"gluster volume status" now shows a new disk active /ws/disk15

The replacement appears to be successful, looks like healing started

[cid:[email protected]]


Thanks and Regards,
--Anand
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