Hi,
We have a 4 way replicated volume using gluster 3.6.3 on CentOS 7.
Over the weekend I did a yum update on each of the bricks in turn, but
now when clients (using fuse mounts) try to access the volume, it hangs.
Gluster itself wasn't updated (we've disabled that repo so that we keep
to 3.6.3 for now).
This was what I did:
* on first brick, "yum update"
* reboot brick
* watch "gluster volume status" on another brick and wait for it
to say all 4 bricks are online before proceeding to update the
next brick
I was expecting the clients might pause 30 seconds while they notice a
brick is offline, but then recover.
I've tried re-mounting clients, but that hasn't helped.
I can't see much data in any of the log files.
I've tried "gluster volume heal callrec" but it doesn't seem to have
helped.
What shall I do next?
I've pasted some stuff below in case any of it helps.
Cheers,
Kingsley.
[root@gluster1b-1 ~]# gluster volume info callrec
Volume Name: callrec
Type: Replicate
Volume ID: a39830b7-eddb-4061-b381-39411274131a
Status: Started
Number of Bricks: 1 x 4 = 4
Transport-type: tcp
Bricks:
Brick1: gluster1a-1:/data/brick/callrec
Brick2: gluster1b-1:/data/brick/callrec
Brick3: gluster2a-1:/data/brick/callrec
Brick4: gluster2b-1:/data/brick/callrec
Options Reconfigured:
performance.flush-behind: off
[root@gluster1b-1 ~]#
[root@gluster1b-1 ~]# gluster volume status callrec
Status of volume: callrec
Gluster process Port Online Pid
------------------------------------------------------------------------------
Brick gluster1a-1:/data/brick/callrec 49153 Y 6803
Brick gluster1b-1:/data/brick/callrec 49153 Y 2614
Brick gluster2a-1:/data/brick/callrec 49153 Y 2645
Brick gluster2b-1:/data/brick/callrec 49153 Y 4325
NFS Server on localhost 2049 Y 2769
Self-heal Daemon on localhost N/A Y 2789
NFS Server on gluster2a-1 2049 Y 2857
Self-heal Daemon on gluster2a-1 N/A Y 2814
NFS Server on 88.151.41.100 2049 Y 6833
Self-heal Daemon on 88.151.41.100 N/A Y 6824
NFS Server on gluster2b-1 2049 Y 4428
Self-heal Daemon on gluster2b-1 N/A Y 4387
Task Status of Volume callrec
------------------------------------------------------------------------------
There are no active volume tasks
[root@gluster1b-1 ~]#
[root@gluster1b-1 ~]# gluster volume heal callrec info
Brick gluster1a-1.dns99.co.uk:/data/brick/callrec/
/to_process - Possibly undergoing heal
Number of entries: 1
Brick gluster1b-1.dns99.co.uk:/data/brick/callrec/
Number of entries: 0
Brick gluster2a-1.dns99.co.uk:/data/brick/callrec/
/to_process - Possibly undergoing heal
Number of entries: 1
Brick gluster2b-1.dns99.co.uk:/data/brick/callrec/
Number of entries: 0
[root@gluster1b-1 ~]#
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