Weblogic Server Hangs And All Threads Changed To "STANDBY" On WLS 10.3.6

(Doc ID 2037831.1)

Last updated on DECEMBER 21, 2016

Applies to:

Oracle WebLogic Server - Version 10.3.2 to 12.1.2.0.0
Information in this document applies to any platform.

Symptoms

On: Weblogic 10.3.6 version, Application Container - JavaEE

The Weblogic server hangs and cannot process any message.  No log output is recorded in the server log after "STANDBY" thread occurs (see below).  You can see many messages are stuck in the queue by checking Monitor/Thread on admin console.

The server is only back to normal only by restarting it. All stuck messages processed successfully and log output is also back to normal.

 

Cause

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