Re: Distributed Geo Replication Lag

Georg Schoenberger <g.schoenberger@xxxxxxxxxx> · Wed, 7 Sep 2016 05:54:48 +0000



    On 2016-09-07 07:45, Aravinda wrote:

    Using Checkpoint feature you can confirm that Geo-rep
      synced till that time.
      

      Set Checkpoint
      

      gluster volume geo-replication <MASTER>
      <SLAVEHOST>::<SLAVEVOL> config checkpoint now
      

      Touch Mount point (To record setattr in every bricks changelog)
      

      mount -t glusterfs localhost:/<MASTERVOL>
      /mnt/<MASTERVOL>
      

      touch /mnt/<MASTERVOL>
      

    The volume is already mounted, I assume I can use the existing mount
    point for the touch command?

    
    Watch the status of Geo-replication, If the Checkpoint
      status is "Yes" then Geo-rep synced everything till the checkpoint
      time. Geo-rep may have synced more that Checkpoint time, but
      checkpoint completion confirms that it synced all files which are
      created/modified before checkpoint time.
      

      gluster volume geo-replication <MASTER>
      <SLAVEHOST>::<SLAVEVOL> status detail
      

      Also watch the log files in Master nodes for any errors.

    
    I am watching /var/log/glusterfs/geo-replication/georeplica logs on
    the master

    Any more logs to consider?

    
    THX Georg

    
      regards
      

      Aravinda
      

      On Tuesday 06 September 2016 06:13 PM, Georg Schoenberger wrote:
      

      Hi folks,
        

        I am trying to switch over to my distributed geo redundant
        volume.
        

        Any tools/checks/methods to ensure the geo redundant volume does
        not lag
        

        behind?
        

        Can I ensure, that the geo replicated host has all the data?
        

        THX, Georg
        

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