Oracle iPlanet Web Server 7.0 Hangs In Weblogic 1.1 Plug-in After Backend Weblogic Server Is Restarted (Doc ID 2204120.1)

Last updated on NOVEMBER 18, 2016

Applies to:

Oracle iPlanet Web Server - Version 7.0 and later
Oracle WebLogic Server - Version 11.1.1.7.0 and later
Information in this document applies to any platform.

Symptoms

Periodically backend weblogic server has to be restarted. When this occurs the front end Oracle iPlanet Web Server which is using the Weblogic Plugin to forward requests hangs. The situation can only be recovered by restarting the web server.

A pstack taken when the problem is observed has many threads in this state.

The pstack outputs appear to show the Weblogic Plugin is deadlocked on a mutex.

Cause

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