11 Troubleshoot

11.1 Troubleshooting High Availability

11.1.1 Remote EM Agent is not able to Connect to Oracle GoldenGate Agent

In a High Availability environment of the node cluster, Oracle GoldenGate instance can relocate to a different machine in case of a classic instance. In the relocate scenario, the Enterprise Manager Agent of the previous machine continues to serve the Oracle GoldenGate Agent until the source/replica values are changed from Manage Agent UI from the Enterprise Manager console.

If the mgr port, pmsrvr port, and jagent.rmi.port are blocked by the firewall, then the remote Enterprise Manager Agent does not make a connection with the Oracle GoldenGate Agent and monitoring stops.

For a seamless monitoring you need to ensure that the mgr port, pmsrvr port, and jagent.rmi.port were not blocked by a firewall. To verify, execute the following telnet commands:
telnet gg-VipName jagent.rmi.port 
curl -v telnet://gg-VipName:jagent.rmi.port
nc -zv -w 5 gg-VipName jagent.rmi.port