Re: High-availability with KVM?

Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx> · Sat, 21 Jan 2017 08:26:01 +1000



    On 21/01/2017 6:52 AM, Gambit15 wrote:

    
      With that setup, you lose quorum if you
        lose any one node.

      
      Brick 1 replicates to brick 2, and brick
        3 replicates to brick 4. If any one of those goes down, quorum
        falls to <51%, which locks the brick under the default
        settings.
    
    
    This I think, highlights one of glusters few weaknesses - the
      inflexibility of brick layout. It would be really nice if you
      could just arbitrarily add bricks to distributed-replicate volumes
      and have files be evenly distributed among them as a whole. This
      would work particularly well with sharded volumes. Unfortunately I
      suspect this would need some sort of meta server.

    
    -- 
Lindsay Mathieson
  

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