Re: Upgrade Gluster 3.7 to 3.12 and add 3rd replica [howto/help]

Ravishankar N <ravishankar@xxxxxxxxxx> · Thu, 21 Sep 2017 10:03:33 +0530



    On 09/20/2017 01:45 PM, Martin Toth
      wrote:

    
      My Questions
      - is heal and rebalance necessary in order to
        upgrade replica 2 to replica 3 ?
    
    No, `gluster volume add-brick voname replica 3
    node3.san:/tank/gluster/brick1' should automatically trigger healing
    in gluster 3.12 (actually earlier than 3.12 but I don't remember
    which release the automatic healing was added on add-brick command).
    Ensure that `gluster volume heal volname info` eventually becomes
    zero.

    
      - is this upgrade procedure OK ? What more/else
        should I do in order to do this upgrade correctly ?
      

    Looks okay in theory (I haven't tried out a 3.7 to 3.12 upgrade). It
    might be good to check there are no pending heals before you stop
    the old nodes for the upgrade.

    -Ravi

  
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