Re: [Gluster-devel] GlusterFS 1.3.0-pre2.3: AFR not working

[Brent A Nelson]

You can work with the underlying filesystem, say, to fix a problem, but 
you'd want to work with it the way GlusterFS would, at least for 
consistency.  So, if it's a mirror, any change you make on one, you'd want 
to reproduce on the other.

With drbd, you could only have one mounted at any given time; otherwise, 
even mounting the other one would be something of a catastrophe.  Note 
that this isn't true of recent, bidirectional drbds, if you run GFS.

Thanks,

Brent

On Wed, 4 Apr 2007, Gerry Reno wrote:

> Avati,
> Yes, of course, it works. So it is similar to DRBD where you must only 
> interact via the exposed mounts and never directly to the underlying 
> subsystem.
>
> Gerry
>
>
> Anand Avati wrote:
> > Gerry,
> > you have to touch via /mnt/glusterfs, not in the backend directly!
> >
> > avati
> >
> >
> > On Tue, Apr 03, 2007 at 04:50:22PM -0400, Gerry Reno wrote:
> >
> > > I have not been successful at getting GlusterFS with AFR translator 
> > > working on 2 bricks:
> > >
> > > =====================
> > > test-server0.vol
> > > =====================
> > > volume brick
> > >  type storage/posix                   # POSIX FS translator
> > >  option directory /root/export0        # Export this directory
> > > end-volume
> > >
> > >   ### Add network serving capability to above brick.
> > > volume server
> > >  type protocol/server
> > >  option transport-type tcp/server     # For TCP/IP transport
> > >  option listen-port 6996              # Default is 6996
> > >  subvolumes brick
> > >  option auth.ip.brick.allow  *  # Allow full access to "brick" volume
> > > end-volume
> > >
> > > =====================
> > > test-server1.vol
> > > =====================
> > > volume brick
> > >  type storage/posix                   # POSIX FS translator
> > >  option directory /root/export1        # Export this directory
> > > end-volume
> > >
> > >   ### Add network serving capability to above brick.
> > > volume server
> > >  type protocol/server
> > >  option transport-type tcp/server     # For TCP/IP transport
> > >  option listen-port 6997              # Default is 6996
> > >  subvolumes brick
> > >  option auth.ip.brick.allow  *  # Allow full access to "brick" volume
> > > end-volume
> > >
> > > =====================
> > > test-client.vol
> > > =====================
> > >   ### Add client feature and declare local subvolume
> > > volume client1-local
> > >  type    storage/posix
> > >  option  directory         /root/export0
> > > end-volume
> > >
> > > volume client2-local
> > >  type    storage/posix
> > >  option  directory         /root/export1
> > > end-volume
> > >
> > >   ### Add client feature and attach to remote subvolume
> > > volume client1
> > >  type    protocol/client
> > >  option  transport-type    tcp/client     # for TCP/IP transport
> > >  option  remote-host       192.168.1.25   # IP address of the remote brick
> > >  option  remote-port       6996           # default server port is 6996
> > >  option  remote-subvolume  brick          # name of the remote volume
> > > end-volume
> > >
> > > volume client2
> > >  type    protocol/client
> > >  option  transport-type    tcp/client
> > >  option  remote-host       192.168.1.25
> > >  option  remote-port       6997
> > >  option  remote-subvolume  brick
> > > end-volume
> > >
> > >   ### Add automatice file replication (AFR) feature
> > > volume afr
> > >  type  cluster/afr
> > >  subvolumes  client1 client2
> > >  option  replicate *:2
> > > end-volume
> > >
> > > =====================
> > > Servers are started like this:
> > > glusterfsd --spec-file=/usr/local/etc/glusterfs/test-server0.vol
> > > glusterfsd --spec-file=/usr/local/etc/glusterfs/test-server1.vol
> > >
> > > Client is started like this:
> > > glusterfs --spec-file=./test-client.vol /mnt/glusterfs/
> > > =====================
> > >
> > > address@hidden glusterfs]# touch /root/export0/file1
> > > wait...
> > > address@hidden glusterfs]# find /root/export*
> > > /root/export0
> > > /root/export0/file1
> > > /root/export1
> > >
> > > =====================
> > > I do not see any replication.
> > > What am I missing?
> > >
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > Gluster-devel mailing list
> > > address@hidden
> > > http://lists.nongnu.org/mailman/listinfo/gluster-devel
>
>
>
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