How to Debug RJVM or Intra-Cluster Communication Problems in WebLogic Server (WLS)
(Doc ID 1300174.1)
Last updated on OCTOBER 02, 2023
Applies to:
Oracle WebLogic Server - Version 9.2 and laterInformation in this document applies to any platform.
This document is informational and intended for any user using the Oracle WebLogic Platform Server Product.
Purpose
The term intra-cluster communication refers to communication between WebLogic Server instances in a cluster. Servers communicate with one another using IP sockets (peer-to-peer communication) and IP unicast or multicast.
Due to the complexity of the technologies involved (e.g. networking, OS, IPs etc), performance issues could arise and java exceptions could be thrown (e.g., PeerGoneException, SocketException, etc.).
Some tools are available to check the health of multicast messaging. Others can be used to monitor the network traffic and statistics (e.g., netstat or tcpdump).
In this document, we will only review internal WebLogic Server debugging options.
Troubleshooting Steps
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In this Document
Purpose |
Troubleshooting Steps |
Debug Settings |
Debug Messages Interpretation |
Sample of logged debug messages |