[Gluster-users] XenServer and Glusterfs 3.1

[Davide Ferri]

I've the same issue.
Of course it works (both nfsv3 and nfsv4) with the standard NFS
deamon. If you share /media you can mount /media/subdir1 (if exists)
without any change to the /etc/exports.

Davide

On Thu, Nov 11, 2010 at 11:47 AM, Shehjar Tikoo <shehjart at gluster.com> wrote:
> Stefano Baronio wrote:
>>
>> Thank you Shehjar,
>>    as we are planning to use glsuterfs in a production environment, we
>> prefer to stay with the 3.1 stable version.
>> As for now the port forwarding seems to work properly, because XenServer,
>> after the testing step on port 2049,  correctly connects to the nfs share
>> using the right ports.
>> I just have the problem that I cannot mount a NFS share subdirectory.
>>  XenServer, when creating the sr, makes a new directory (the sr uuid) just
>> under the share root and put its VM file under that directory.
>> When mounting that subdir, Glusterfs returns the "No such file or
>> directory" error.
>
> Thats because by default Gluster NFS only exports volumes as NFS exports not
> the directories inside those volumes.
>
> How does this work with knfs? Even that will return the same error because
> the newly created directory will not exist in /etc/exports.
>
> Thanks
> -Shehjar
>
>
>>
>> Thank you
>> Stefano Baronio
>>
>> 2010/11/11  Tikoo <shehjart at gluster.com <mailto:shehjart at gluster.com>>
>>
>>    Yes. That was a limitation on 3.1 release and is already fixed in
>>    mainline. This support allows you to change the nfs port number that
>>    Gluster NFS uses by default. It'll be available in 3.1.1 but if
>>    you'd like to test right away, please use 3.1.1qa5 by checking it
>>    out from the repository:
>>
>>    $ git clone git://git.gluster.com/glusterfs.git
>>    <http://git.gluster.com/glusterfs.git>
>>    $ cd glusterfs
>>    $ git checkout -b v3.1.1qa5 3.1.1qa5
>>
>>    Then build and install.
>>
>>    To change the nfs port, locate the volume section nfs/server in
>>    /etc/glusterd/nfs/nfs-server.vol and add the following line:
>>
>>    option nfs.port 2049
>>
>>    Note that this option is not yet available in the gluster CLI, so
>>    you'll have to manually edit this file and restart the gluster nfs
>>    daemon. Be careful while using that tool, because on a restart of a
>>    volume using gluster CLI, your edited volume file will get
>>    over-written with the default version.
>>
>>
>>    Thanks
>>    -Shehjar
>>
>>    Stefano Baronio wrote:
>>
>>        Hello all,
>>         I'm new to the list and I'm working on glusterfs since a month
>>        right now.
>>        I'm posting a request about how to get XenServer working with
>>        Glusterfs.
>>
>>        I have a standard setup of both XenServer and Glusterfs.
>>        I can mount the glusterfs nfs share from the Xen CLI, write in
>>        it and mount
>>        it as an ISO library as well.
>>        I just can't mount it for storage purpose.
>>        It seems that XenServer is testing the NFS share directly to
>>        port 2049,
>>        without checking with portmapper.
>>
>>        I have tried to make glusterfs listen on port 2049 without any
>>        success, so I
>>        have setup a port forwarding on the gluster server.
>>        Lets say:
>>        xen01 - 192.168.14.33
>>        xenfs01 (gluster nfs) - 192.168.14.61
>>
>>        The iptables settings are:
>>        iptables -A PREROUTING -d 192.168.14.61 -p tcp -m tcp --dport
>>        2049 -j DNAT
>>        --to-destination 192.168.14.61:38467 <http://192.168.14.61:38467>
>>        iptables -A FORWARD -d 192.168.14.61 -p tcp -m tcp --dport 38467
>>        -j ACCEPT
>>
>>        Now XenServer can correctly test the gluster nfs share. It
>>        creates the
>>        sr-uuid directory in it, but it can't mount it, with the
>>        following error:
>>        FAILED: (errno 32) stdout: '', stderr: 'mount:
>>        xenfs01:/xenfs/1ca32487-42fe-376e-194c-17f78afc006c failed,
>>        reason given by
>>        server: No such file or directory
>>
>>        Any help appreciated.
>>        Thank you
>>
>>        Stefano
>>
>>
>>
>>
>>  ------------------------------------------------------------------------
>>
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>>
>>
>
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