Re: GlusterFS 3.7

Andreas Hollaus <andreas.hollaus@xxxxxxxxxxxx> · Tue, 22 Sep 2015 13:19:11 +0200



    Hi & thanks,

    
    Well, obviously my intention is not to create a mess, but the reason
    for redundancy is probably that servers may disappear from the
    cluster for a while. In case I run any glusterfs commands related to
    the volume definition at that time, those changes will not reach the
    unavailable server. That's why I wonder how GlusterFS will sync such
    information when the server is available again? In case I know how
    that is handled, I'll know what I can do and what I cannot do.

    
    Regards

    Andreas

    
    On 09/22/2015 01:05 PM, Alastair Neil
      wrote:

    
      glusterd should handle syncing any changes you make
        with the "gluster"  command to the peers, obviously if you make
        local changes to the volume file on one server you are likely to
        break things unless you copy rsync the changes to the other
        server.
      

        On 22 September 2015 at 04:02, Andreas
          Hollaus <Andreas.Hollaus@xxxxxxxxxxxx>
          wrote:

          Hi,

            
            Are there any restrictions as to when I'm allowed to make
            changes to the GlusterFS

            volume (for instance: start/stop volume, add/remove brick or
            peer)? How will it

            handle such changes when one of my two replicated servers is
            down? How will GlusterFS

            know which set of configuration files it can trust when the
            other server is connected

            again and the files will contain different information about
            the volume? If these

            were data files on the GlusterFS volume that would have been
            handled by the extended

            file attributes, but how about the GlusterFS configuration
            itself?

            
            Regards

            Andreas

            
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