答复: Add brick question.

何亦军 <heyijun@xxxxxxxxxxxxxxxx> · Thu, 19 Mar 2015 12:18:16 +0000

Thanks, MS.

My problem resolved.

Volume Name: vol01

Type: Distributed-Replicate

Volume ID: 0bcd8d7c-b48a-4408-b7b8-56d4b5f8a97c

Status: Started

Number of Bricks: 3 x 2 = 6

Transport-type: tcp

Bricks:

Brick1: gwgfs01:/data/brick1/vol01

Brick2: gwgfs03:/data/brick2/vol01

Brick3: gwgfs01:/data/brick2/vol01

Brick4: gwgfs02:/data/brick2/vol01

Brick5: gwgfs02:/data/brick1/vol01

Brick6: gwgfs03:/data/brick1/vol01

I have last question, What are correct procedure like my requirement? I didn't find any similar case in document.

Environment: Every node have two brick, Distributed-Replicate

Requirement: Add node to pool

发件人: M S Vishwanath Bhat [msvbhat@xxxxxxxxx]

发送时间: 2015年3月19日 18:27

收件人: 何亦军

抄送: gluster-users@xxxxxxxxxxx

主题: Re:  Add brick question.

On 19 March 2015 at 14:59, 何亦军 <heyijun@xxxxxxxxxxxxxxxx> wrote:

Hi Guys,

     I have two servers in my pool , I plan add new server to that pool.
     My volume info below:

    Volume Name: vol01
Type: Distributed-Replicate
Volume ID: 0bcd8d7c-b48a-4408-b7b8-56d4b5f8a97c
Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: gwgfs01:/data/brick1/vol01
Brick2: gwgfs02:/data/brick1/vol01
Brick3: gwgfs01:/data/brick2/vol01
Brick4: gwgfs02:/data/brick2/vol01

I plan to form a combination:

Brick1: gwgfs01:/data/brick1/vol01
Brick2: gwgfs03:/data/brick2/vol01
Brick3: gwgfs01:/data/brick2/vol01
Brick4: gwgfs02:/data/brick2/vol01
Brick5: gwgfs02:/data/brick1/vol01
Brick6: gwgfs03:/data/brick1/vol01

My processing steps：
1.      
gluster peer probe gwgfs03
2.      
gluster volume replace-brick vol01 gwgfs02:/data/brick1/vol01  gwgfs03:/data/brick2/vol01 status
3.      
After replace completed, do: gluster volume rebalance vol01 start

And  finally  I try to add brick meet problem:
[root@gwgfs03 vol01]# gluster volume add-brick vol01 gwgfs02:/data/brick1/vol01  gwgfs03:/data/brick1/vol01
volume add-brick: failed: /data/brick1/vol01 is already part of a volume

The brick directory will have some xattrs while being part of the volume. So you will have to remove the xattrs from the directory before adding the brick to the volume again. You can simply delete the directory and re-create it again.

[root@gwgfs03 vol01]# gluster volume remove-brick vol01 gwgfs02:/data/brick1/vol01 start
volume remove-brick start: failed: Remove brick incorrect brick count of 1 for replica 2

Since you have replica 2 volume, you should add/remove at least 2 bricks at a time. You can try the following (after you delete and re-create
gwgfs02:/data/brick1/vol01)

gluster volume add-brick vol01  gwgfs02:/data/brick1/vol01
gwgfs03:/data/brick1/vol01

HTH

MS

Current , my volume info below:    What can I do now? Help?

[root@gwgfs03 vol01]# gluster volume info

Volume Name: vol01
Type: Distributed-Replicate
Volume ID: 0bcd8d7c-b48a-4408-b7b8-56d4b5f8a97c
Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: gwgfs01:/data/brick1/vol01
Brick2: gwgfs03:/data/brick2/vol01
Brick3: gwgfs01:/data/brick2/vol01
Brick4: gwgfs02:/data/brick2/vol01
Options Reconfigured:
nfs.disable: on
user.cifs: disable
auth.allow: *

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