Re: How to replace a dead brick? (3.6.5)

[Joe Julian <joe@xxxxxxxxxxxxxxxx>]

On 10/08/2015 11:46 AM, Pranith Kumar Karampuri wrote:

On 3.7.4, all you need to do is execute "gluster volume replace-brick <volname> commit force" and rest will be taken care by afr. We are in the process of coming up with new commands like "gluster volume reset-brick <volname> start/commit" for wiping/re-formatting of the disk. So wait just a little longer :-).

Pranith

Nope.

Volume Name: test
Type: Replicate
Volume ID: 426a1719-7cc2-4dac-97b4-67491679e00e
Status: Started
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: questor:/tmp/foo1.1
Brick2: questor:/tmp/foo1.2


Status of volume: test
Gluster process                             TCP Port  RDMA Port  Online  Pid
------------------------------------------------------------------------------
Brick questor:/tmp/foo1.1                   49162     0          Y       20825
Brick questor:/tmp/foo1.2                   49163     0          Y       20859
NFS Server on localhost                     N/A       N/A        N       N/A 
Self-heal Daemon on localhost               N/A       N/A        Y       20887

[root@questor]# kill 20825
[root@questor]# rm -rf /tmp/foo1.1
[root@questor]# mkdir /tmp/foo1.1
[root@questor]# gluster volume replace-brick test commit force
Usage: volume replace-brick <VOLNAME> <SOURCE-BRICK> <NEW-BRICK> {commit force}
[root@questor]# gluster volume replace-brick test questor:/tmp/foo1.1 questor:/tmp/foo1.1 commit force
volume replace-brick: failed: Brick: questor:/tmp/foo1.1 not available. Brick may be containing or be contained by an existing brick

On 10/08/2015 11:26 AM, Lindsay Mathieson wrote:

On 8 October 2015 at 07:19, Joe Julian <joe@xxxxxxxxxxxxxxxx> wrote:

I documented this on my blog at https://joejulian.name/blog/replacing-a-brick-on-glusterfs-340/ which is still accurate for the latest version.

The bug report I filed for this was closed without resolution. I assume there's no plans for ever making this easy for administrators.
https://bugzilla.redhat.com/show_bug.cgi?id=991084

Yes, its the sort of workaround one can never remember in an emergency, you'd have to google it up ...

In the case I was working with, probably easier and quicker to do a remove-brick/add-brick.

thanks,

--

Lindsay

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