[Gluster-users] adding a node

[Pierre Léonard]

Hi JF Le Fillâtre,

Hello,

You cannot. As the message said, you cannot change the stripe count.

I don't change the strip count, the number is the same.  

So
you can add 4 bricks and you have a distributed + striped volume, but
you cannot change the stripe count by re-adding existing bricks into the
volume with a different stripe count, or by adding an additional brick
to the volume.

That is the real question : "is it possible to add a node to a stripe volume one by one ?"
I not when I receive a new node I can't insert it in the global cluster service !


  Your email isn't very clear; could you please send:
- the list of commands in the order that you typed them;
- the output of "gluster volume info" and "gluster volume status"

On one of the four node :
[root at boogy2 ~]# gluster volume stop gvHome

on the new node :
[root at moody gvHome]# gluster volume add-brick gvHome  moody:/mnt/gvHome/brick1
volume add-brick: failed: Incorrect number of bricks supplied 1 with count 2

[root at boogy2 ~]# gluster volume info gvHome

Volume Name: gvHome
Type: Distributed-Stripe
Volume ID: aa7bc5be-e6f6-43b0-bba2-b9d51ed2e4ef
Status: Started
Number of Bricks: 2 x 2 = 4
Transport-type: tcp
Bricks:
Brick1: boogy1:/mnt/gvHome/brick1
Brick2: boogy2:/mnt/gvHome/brick1
Brick3: boogy3:/mnt/gvHome/brick1
Brick4: boogy4:/mnt/gvHome/brick1


[root at boogy2 ~]# gluster volume status gvHome
Status of volume: gvHome
Gluster process                                         Port    Online  Pid
------------------------------------------------------------------------------
Brick boogy1:/mnt/gvHome/brick1                         49153   Y       21735
Brick boogy2:/mnt/gvHome/brick1                         49153   Y       121607
Brick boogy3:/mnt/gvHome/brick1                         49153   Y       26828
Brick boogy4:/mnt/gvHome/brick1                         49153   Y       116839
NFS Server on localhost                                 N/A     N       N/A
NFS Server on moody                                     N/A     N       N/A
NFS Server on 138.102.172.94                            2049    Y       116853
NFS Server on boogy1                                    2049    Y       21749
NFS Server on boogy3                                    2049    Y       26843

Task Status of Volume gvHome
------------------------------------------------------------------------------
There are no active volume tasks



[root at boogy2 ~]# glusterd -V
glusterfs 3.6.1 built on Nov  7 2014 15:15:48


that's all.


Many thank's

sincereley

-- 
Signature electronique
INRA <http://www.inra.fr>
*Pierre Léonard*
*Senior IT Manager*
*MetaGenoPolis*
Pierre.Leonard at jouy.inra.fr <mailto:Pierre.Leonard at jouy.inra.fr>
Tél. : +33 (0)1 34 65 29 78

Centre de recherche INRA
Domaine de Vilvert – Bât. 325 R+1
78 352 Jouy-en-Josas CEDEX
France
www.mgps.eu <http://www.mgps.eu>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20150316/526d34d5/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: logo-INRA2013.gif
Type: image/gif
Size: 2560 bytes
Desc: http://www.inra.fr/
URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20150316/526d34d5/attachment.gif>