Re: nfs

Ted Miller <tmiller@xxxxxxxx> · Wed, 28 May 2014 13:44:49 -0400



    You do not create anything on "one volume".  That will not replicate
    properly.

    
    Mount the gluster volume -- in a different place -- and
    create the volume on the gluster volume.  It will then
    replicate to both bricks.

    
    Line in /etc/fstab should look like:  

    primary:str      /mnt/glusterfs     glusterfs    default   
    0 0

    or

    primary:/str      /mnt/glusterfs             nfs   
    default    0 0

    
    When you mount the gluster volume, it does not "replicate
    from one brick to another" it is created on both bricks at the same
    time".

    
    If you mounted the volume correctly, you can just look at the bricks
    on each server, and you can see what is replicated.  The entire file
    structure will be there.

    
    Ted Miller

    Elkhart, IN, USA

    
    P.S.  This is one of the most common mistakes made by newbies. 
    Don't feel bad if you made it.  If you did not, congratulate
    yourself.

    
    On 5/28/2014 5:13 AM,
      yalla.gnan.kumar@xxxxxxxxxxxxx wrote:

    
        Hi All,
         
        I got it. Its
            due to lack of hostnames in /etc/hosts.  Now it is working. 
          J
         
        I am facing
            another problem.  I have used replicated volumes in the two
            node gluster.  I have used these  replicated volume in
            openstack.
        I have created
            file system on one volume.  But how to verify that the same
            content in one node is replicated on the gluster disk of
            another node ?
         
         
        Thanks
        Kumar
         
        
            From:
                Gnan Kumar, Yalla
                

                Sent: Wednesday, May 28, 2014 2:27 PM

                To: gluster-users@xxxxxxxxxxx

                Subject: nfs
          
        
        Hi All,
         
        I have a two node gluster storage.  The
          gluster version is 3.2.5.  But while mounting from a remote
          server as nfs volume, it is failing.
         
        -------------- 
        root@compute:~# showmount -e primary
        Export list for primary:
        /rpl *
        /str *
        /dst *
         
        root@compute:~# mount -vvv -o
          mountproto=tcp -t nfs  primary:/str  /mnt/glusterfs
        mount: fstab path: "/etc/fstab"
        mount: mtab path:  "/etc/mtab"
        mount: lock path:  "/etc/mtab~"
        mount: temp path:  "/etc/mtab.tmp"
        mount: UID:        0
        mount: eUID:       0
        mount: spec:  "primary:/str"
        mount: node:  "/mnt/glusterfs"
        mount: types: "nfs"
        mount: opts:  "mountproto=tcp"
        mount: external mount: argv[0] =
          "/sbin/mount.nfs"
        mount: external mount: argv[1] =
          "primary:/str"
        mount: external mount: argv[2] =
          "/mnt/glusterfs"
        mount: external mount: argv[3] = "-v"
        mount: external mount: argv[4] = "-o"
        mount: external mount: argv[5] =
          "rw,mountproto=tcp"
        mount.nfs: timeout set for Wed May 28
          06:13:38 2014
        mount.nfs: trying text-based options
          'mountproto=tcp,addr=10.211.203.66,mountaddr=10.211.203.66'
        mount.nfs: prog 100003, trying vers=3,
          prot=6
        mount.nfs: trying 10.211.203.66 prog 100003
          vers 3 prot TCP port 38467
        mount.nfs: prog 100005, trying vers=3,
          prot=6
        mount.nfs: trying 10.211.203.66 prog 100005
          vers 3 prot TCP port 38465
        mount.nfs: mount(2): Permission denied
        mount.nfs: access denied by server while
          mounting primary:/str
         
         
        What is the reason ?
         
        Thanks
        Kumar
      
      
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Ted Miller
Design Engineer
HCJB Global Technology Center, a ministry of Reach Beyond
2830 South 17th St
Elkhart, IN  46517
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