Gluster users - Nov 2009 - adding bricks

What's the best way to add bricks, and get distribute to use them?  I added
2 more bricks, and the total size increased for the filesystem, but i can't
get any traffic on the new disks.  I remounted the filesystem, and ran an ls -Rl
, but i still don't see any traffic to the disks.  I do see that the file
tree was created on the new disks.

This is what i have for distribute:

volume distribute
 type cluster/distribute
 subvolumes brick_g1a brick_g1b brick_g1c brick_g1d
end-volume

> What's the best way to add bricks, and get distribute to use them?  I
> added 2 more bricks, and the total size increased for the filesystem,
> but i can't get any traffic on the new disks.  I remounted the
> filesystem, and ran an ls -Rl , but i still don't see any traffic to
> the disks.  I do see that the file tree was created on the new disks.
Currently there is no 'hot' add feature which will take care of the 
addition of new bricks. To achieve the proper distribution, you need 
to force 'distribute' self heal by removing the extended attribute on 
the directories.

Try running this:

bash# find /mnt/glusterfs -type d -exec setfattr -x trusted.glusterfs.dht {} \;

(Note that this works for versions 2.0.8 or higher).

Regards,

Hi Thomas,

If you are creating files in the directories existing at the time of adding a
brick, the new brick is not considered for distribution, since the layout of
distribution of files in those directories has already been constructed (and
stored in the directories using extended attributes) and layout is freshly
constructed during directory creation. Only the directories created after you
add a brick will include the new brick (along with existing bricks) in the
layout and hence only these directories can have files distributed on the new
brick.

regards,
----- Original Message -----
From: "Thomas Wakefield" <twake at cola.iges.org>
To: gluster-users at gluster.org
Sent: Thursday, November 19, 2009 9:07:27 PM GMT +04:00 Abu Dhabi / Muscat
Subject: [Gluster-users] adding bricks

What's the best way to add bricks, and get distribute to use them?  I added
2 more bricks, and the total size increased for the filesystem, but i can't
get any traffic on the new disks.  I remounted the filesystem, and ran an ls -Rl
, but i still don't see any traffic to the disks.  I do see that the file
tree was created on the new disks.



This is what i have for distribute:

volume distribute
 type cluster/distribute
 subvolumes brick_g1a brick_g1b brick_g1c brick_g1d
end-volume



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