[Gluster-users] held cluster lock blocking volume operations

[Vijay Bellur]

On 06/04/2013 10:29 PM, Matthew Nicholson wrote:
> So it sees something is holding the lock, Rejects it,
>
> If i look up that uuid:
>
> [root at ox60-gstore10 ~]# gluster peer status |grep
> 0edce15e-0de2-4496-a520-58c65dbbc7da --context=3
> Number of Peers: 20
>
> Hostname: ox60-gstore10
> Uuid: 0edce15e-0de2-4496-a520-58c65dbbc7da
> State: Peer in Cluster (Connected)


This seems to be the case of a server being a peer of itself. This is 
not required. The following steps might be of help when performed on 
ox60-gstore10:

a) Take a backup of /var/lib/glusterd.

b) Stop glusterd.

c) Remove the file with name 0edce15e-0de2-4496-a520-58c65dbbc7da in 
/var/lib/glusterd/peers/.

d) Restart glusterd.

At this point in time, ox60-gstore10 should not be seen in the output of 
"gluster peer status" on ox60-gstore10. It should be seen in the output 
on other nodes of the cluster. If such a state is reached, all volume 
operations should proceed further.

How did the setup get into such a state? Was a self probe attempted or 
/var/lib/glusterd cloned from one of its peers?

-Vijay