08-02-2016 07:02 AM
After a restart I get the following error from both traffic managers in my cluster.
"device" is not receiving heartbeat messages from any machine in the cluster
I thought it was a netwroking issues but both machines are able to comminicate with one another on 9090.
Is there something I am missing in relation to heartbeat.
08-05-2016 05:32 AM
The Heartbeat message use UDP rather than TCP. So it might be worth checking that UDP is allowed between them. The messages have been unicast by default for a while, but older versions of vTM used to default to multicast. If this cluster has been running for a while, then it might be using multicast. Check System -> Fault Tolerance -> General -> flipper!heartbeat_method.
If it's using unicast, then it might be a problem with IGMP on your network. You can either try to fix it, or switch to unicast.