[Gluster-users] [Gluster-devel] Messup with peer status!!

[Atin Mukherjee]

On 03/14/2016 10:52 AM, ABHISHEK PALIWAL wrote:
> Hi Team,
> 
> I am facing some issue with peer status and because of that remove-brick
> on replica volume is getting failed.
> 
> Here. is the scenario what I am doing with gluster:
> 
> 1. I have two boards A & B and gluster is running on both of the boards.
> 2. On  board I have created a replicated volume with one brick on each
> board.
> 3. Created one glusterfs mount point where both of brick are mounted.
> 4. start the volume with nfs.disable=true.
> 5. Till now everything is in sync between both of bricks.
> 
> Now when I manually plug-out the board B from the slot and plug-in it again.
> 
> 1. After bootup the board B I have started the glusted on the board B.
> 
> Following are the some gluster command output on Board B after the step 1.
> 
> # gluster peer status 
> Number of Peers: 2
>  
> Hostname: 10.32.0.48
> Uuid: f4ebe3c5-b6a4-4795-98e0-732337f76faf
> State: Accepted peer request (Connected)
>  
> Hostname: 10.32.0.48
> Uuid: 4bf982c0-b21b-415c-b870-e72f36c7f2e7
> State: Peer is connected and Accepted (Connected)
> 
> Why this peer status is showing two peer with different UUID?
GlusterD doesn't generate a new UUID on init if it has already generated
an UUID earlier. This clearly indicates that on reboot of board B
content of /var/lib/glusterd were wiped off. I've asked this question to
you multiple times that is it the case?
> 
> # gluster volume info
>  
> Volume Name: c_glusterfs
> Type: Replicate
> Volume ID: c11f1f13-64a0-4aca-98b5-91d609a4a18d
> Status: Started
> Number of Bricks: 1 x 2 = 2
> Transport-type: tcp
> Bricks:
> Brick1: 10.32.0.48:/opt/lvmdir/c2/brick
> Brick2: 10.32.1.144:/opt/lvmdir/c2/brick
> Options Reconfigured:
> performance.readdir-ahead: on
> network.ping-timeout: 4
> nfs.disable: on
> # gluster volume heal c_glusterfs info 
> c_glusterfs: Not able to fetch volfile from glusterd
> Volume heal failed.
> # gluster volume status c_glusterfs 
> Status of volume: c_glusterfs
> Gluster process                             TCP Port  RDMA Port  Online 
> Pid
> ------------------------------------------------------------------------------
> 
> Brick 10.32.1.144:/opt/lvmdir/c2/brick      N/A       N/A        N      
> N/A  
> Self-heal Daemon on localhost               N/A       N/A        Y      
> 3922 
>  
> Task Status of Volume c_glusterfs
> ------------------------------------------------------------------------------
> 
> There are no active volume tasks
> -- 
> 
> At the same time Board A have the following gluster commands outcome:
> 
> # gluster peer status
> Number of Peers: 1
>  
> Hostname: 10.32.1.144
> Uuid: c6b64e36-76da-4e98-a616-48e0e52c7006
> State: Peer in Cluster (Connected)
> 
> Why it is showing the older UUID of host 10.32.1.144 when this UUID has
> been changed and new UUID is 267a92c3-fd28-4811-903c-c1d54854bda9
> 
> 
> # gluster volume heal c_glusterfs info 
> c_glusterfs: Not able to fetch volfile from glusterd
> Volume heal failed.
> # gluster volume status c_glusterfs 
> Status of volume: c_glusterfs
> Gluster process                             TCP Port  RDMA Port  Online 
> Pid
> ------------------------------------------------------------------------------
> 
> Brick 10.32.0.48:/opt/lvmdir/c2/brick       49169     0          Y      
> 2427 
> Brick 10.32.1.144:/opt/lvmdir/c2/brick      N/A       N/A        N      
> N/A  
> Self-heal Daemon on localhost               N/A       N/A        Y      
> 3388 
> Self-heal Daemon on 10.32.1.144             N/A       N/A        Y      
> 3922 
>  
> Task Status of Volume c_glusterfs
> ------------------------------------------------------------------------------
> 
> There are no active volume tasks
>  
> As you see in the "gluster volume status" showing that Brick 
> "10.32.1.144:/opt/lvmdir/c2/brick " is offline so We have tried to
> remove it but getting "volume remove-brick c_glusterfs replica 1
> 10.32.1.144:/opt/lvmdir/c2/brick force : FAILED : Incorrect brick
> 10.32.1.144:/opt/lvmdir/c2/brick for volume c_glusterfs" error on the
> Board A.
> 
> Please reply on this post because I am always getting this error in this
> scenario.
> 
> For more detail I am also adding the logs of both of the board which
> having some manual created file in which you can find the output of
> glulster command from both of the boards
> 
> in logs
> 00030 is board A
> 00250 is board B.
This attachment doesn't help much. Could you attach full glusterd log
files from both the nodes?
> 
> Thanks in advance waiting for the reply.
> 
> Regards,
> Abhishek
>  
> 
> Regards
> Abhishek Paliwal
> 
> 
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