Monday, October 29, 2018

linux - DBRD dual primary Heartbeat resource management

I have the following setup:





  • Two servers with DRBD running dual primary with OCFS2

  • Heartbeat with two virtual ips, one for each server

  • Round robin DNS to load balance NFS across the two vIPs



Shutting down Server1 for a period of time, cause Server2 to take over the vIP for failover. However, when Server1 returns - it takes over the designated vIP as soon as heartbeat gets connection again - even though the DRBD is running sync (and thus not up to date)



How can I configure heartbeat to perform failback as soon as Server1 again is in sync with Server2 ? (And not before)

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