Re: [Gluster-devel] NUFA Scheduler

[Gordan Bobic]

OK, I clearly misunderstood something.
All I am trying to achieve is have the same process handle the client 
and server aspects, so that mounting the AFR-ed FS gets the local server 
going, too. Is that not achievable? Because what I have _seems_ to 
actually work, only I cannot mount the FS from a single server from a 
remote node, I just get "end point not connected". But files between the 
two servers do get replicated.

Attached is a sample config of what I'm talking about. The other server 
is the same only with home1 and home2 volumes reversed.

Gordan

Anand Babu Periasamy wrote:
> Hi Gordan,
> Schedulers are only available for Unify translator. AFR doesnt support
> NUFA.
>
> Usually for HPC type workload, we do two separate mounts.
> 1) Unify (with NUFA scheduler) of all the nodes
> 2) Unify (with RR scheduler) of all AFRs. Each AFR mirrors two nodes.
>
> --
> Anand Babu Periasamy
> GPG Key ID: 0x62E15A31
> Blog [http://ab.freeshell.org]
> The GNU Operating System [http://www.gnu.org]
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>
>
>
> Gordan Bobic wrote:
> > Hi,
> >
> > I'm trying to use the NUFA scheduler and it works fine between the 
> > machines that are both clients and servers, but I'm not having much 
> > luck with getting client-only machines to mount the share.
> >
> > I'm guessing that the problem is that I am trying to wrap a "type 
> > cluster/afr" brick with "option scheduler nufa" with a 
> > protocol/server, and export that. Is there any reason why this 
> > shouldn't work? Or do I have to set up a separate AFR brick without 
> > "option scheduler nufa" to export with a brick of "type protocol/server"?
volume home1
        type storage/posix
        option directory /gluster/home
end-volume

volume storage-home
        type protocol/server
        option transport-type tcp/server
        option listen-port 6996
        subvolumes home1
        option auth.ip.storage-home.allow 192.168.*
end-volume

volume home2
        type protocol/client
        option transport-type tcp/client
        option remote-host 192.168.3.1
        option remote-port 6996
        option remote-subvolume storage-home
end-volume

volume home-afr
        type cluster/afr
        option read-subvolume home1
        option scheduler nufa
        option nufa.local-volume-name home1
        option nufa.limits.min-free-disk 1%
        subvolumes home1 home2
end-volume

volume home
        type protocol/server
        option transport-type tcp/server
        option listen-port 6997
        option client-volume-filename /etc/glusterfs/glusterfs-client.vol
        subvolumes home-afr
        option auth.ip.home.allow 127.0.0.1,192.168.*
end-volume