[Gluster-users] Problems after upgrade/volume expansion

Branden Timm btimm at energy.wisc.edu
Mon Feb 3 22:15:59 UTC 2014

I should mention that the following line from the log is also worrying, 
as each trusted server is running Gluster v. 3.4.2, as verified by 
running /usr/sbin/glusterd -V:

Using Program GlusterFS 3.3, Num (1298437), Version (330)


On 2/3/2014 3:35 PM, Branden Timm wrote:
> Hello,
>   I'm experiencing some major problems with my GlusterFS filesystem 
> after an upgrade/expansion, and I'm hoping I can get pointed in the 
> right direction for troubleshooting it.
> I had a 5 server, 5 brick distributed volume on 3.3.1.  I brought the 
> volume offline, stopped glusterd and glusterfsd on all servers, then 
> upgraded to 3.4.2 and brought glusterd and glusterfsd back online.  So 
> far so good.
> Once the volume was back online and healthy, I added a new server to 
> the trusted storage pool and added two bricks attached to that server 
> to the pool.  Everything looked fine so far, gluster volume status 
> showed all six servers and seven bricks as online.
> The problem came next when I tried to rebalance.  I ran "gluster 
> volume rebalance <volname> start force", then once it returned ran 
> "status" and saw that the rebalance failed on all but one node, which 
> showed in progress.  The node that it was running successfully on was 
> a pre-existing server, not the new server/brick(s).  The other five 
> servers report "1 subvolume(s) are down. Skipping fix layout."  
> Somebody in the IRC channel suggested this means that one of my bricks 
> are down, but "gluster volume <volname> status" reports all servers 
> and bricks as being online.   Full pastebin of the rebalance log 
> (essentially the same on all five failing servers) here: 
> http://fpaste.org/74082/14615971/
> Currently, I have both missing files and files that report "Transport 
> endopint not connected" when they are accessed.  It seems to really be 
> related to the rebalance failures, and the layout seems incorrect as 
> well.  Really hoping somebody can point me in the right direction of 
> where to look next.  Thanks in advance for any help.
> -Branden
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