Gluster users - Jul 2013 - Create a volume with one brick

Hi,

i wonder if it's possible to create a volume with one brick.
I know it is strange to use a clusterfilesystem with one machine, but it could
be helpfull for testing or change a brick if there are only two,...

Is there a tric to do it? Maybe with a additional virtuell interface, so the
current machine've two IP addresses?

Tank you for information,

Gregor
--

This is done all the time for testing and it is really easy.

install the RPM's, start up the glusterd service.

1) make a directory for gluster to use. Never touch anything in this directory.
mkdir /var/gluster

2) create your volume
gluster volume create MyVolume localhost:/var/gluster
gluster volume start MyVolume

3) mount with fuse to another directory
mkdir /a
mount.glusterfs localhost:MyVolume /a

When you write files to /a the files will get written to the brick
which is /var/gluster in this example.

You now have a test. Enjoy.


On Tue, Jul 30, 2013 at 7:53 AM, Gregor Burck <gregor at aeppelbroe.de>
wrote:
> Hi,
>
> i wonder if it's possible to create a volume with one brick.
> I know it is strange to use a clusterfilesystem with one machine, but it
could be helpfull for testing or change a brick if there are only two,...
>
> Is there a tric to do it? Maybe with a additional virtuell interface, so
the current machine've two IP addresses?
>
> Tank you for information,
>
> Gregor
> --
>
>
>
> _______________________________________________
> Gluster-users mailing list
> Gluster-users at gluster.org
> http://supercolony.gluster.org/mailman/listinfo/gluster-users

If you're trying to build a cluster win just one machine, have a look at
'tests/cluster.rc' in the glusterfs source repo. It is used for some
tests
that require a cluster in the gluster regression test suite.

~kaushal
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I guess I find a solution:

1. add a additional virtual interface with an own IP

2. create two folder to export

3. volume create test replica 2 IP1:/folder1 IP2:/folder2

It seem to work, so I only need one machine,... and if necessary I could add a
other brick of an other machine.

Bye

Gregor
--