[Gluster-users] delete brick / format / add empty brick

[Alun James]

I have this a go. 


gluster volume add-brick myvol replica 2 server2:/brick1 
gluster volume heal myvol full 



It seems to be syncing the files but very slowly. Also the server load on server01 has risen to 200+ and the gluster clients are no longer able to access the mounts. Is there a way to do this that is not as impactful? Could I manually rsync the bricks before adding the second node back in? 


Cheers, 


Alun. 

----- Original Message -----

From: "Ravishankar N" <ravishankar at redhat.com> 
To: "Alun James" <ajames at tibus.com> 
Cc: gluster-users at gluster.org 
Sent: Wednesday, 8 January, 2014 4:00:44 AM 
Subject: Re: [Gluster-users] delete brick / format / add empty brick 


On 01/07/2014 09:40 PM, Alun James wrote: 



Hi folks, 


I had a 2 node (1 brick each) replica, some network meltdown issues seemed to cause problems with second node (server02). glusterfsd process reaching 200-300% and errors relating to split brain possibilities and self heal errors. 


Original volume info: 


Volume Name: myvol 

Type: Replicate 
Status: Started 
Number of Bricks: 2 
Transport-type: tcp 
Bricks: 
Brick1: server01:/brick1 
Brick2: server02:/brick1 


I removed the second brick (that was showing server problems). 


gluster volume remove-brick myvol replica 1 server02:/brick1 


Now the volume status is: 



Volume Name: tsfsvol0 
Type: Distribute 
Status: Started 
Number of Bricks: 1 
Transport-type: tcp 
Bricks: 
Brick1: server01:/brick1 


All is fine and the data on working server is sound. 


The xfs partition for server02:/brick1 has been formatted and therefore the data gone. All other gluster config data has remained untouched. Can I re-add the second server to the volume with an empty brick and the data will auto replicate over from the working server? 


gluster volume add-brick myvol replica 2 server2:/brick1 ?? 




Yes this should work fine. You will need to run a `gluster volume heal myvol full` to manually trigger the replication. 


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