IBM Support

DCS Port Not Immediately Available on JVM Restarts

Troubleshooting


Problem

Users may experience a long wait period for the Linux operating system to release the TCP ports after restarting a WebSphere Application Server, in any of the following scenarios: * Starting the server immediately after stopping the Java process * Restarting the server * Restarting the server in debug mode

Symptom

JVM restarts are delayed with ~60 seconds worth of messages implicating the DCS port:

TCPC0003E: TCP Channel TCP_1 initialization failed. The socket bind failed for host * and port 9354. The port may already be in use.

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"High Availability (HA)","Platform":[{"code":"PF016","label":"Linux"}],"Version":"8.5.5;8.5;8.0;7.0;6.1.0.45","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Document Information

Modified date:
03 March 2025

UID

swg21645658