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WebLogic OutOfMemoryErrors, Session Leaks, and BEA-101020 Errors Due to Incorrect Request Object Cleanup (Doc ID 1371275.1)

Last updated on MAY 01, 2021

Applies to:

Oracle Commerce Platform - Version 9.0 and later
Information in this document applies to any platform.

Symptoms

When running Oracle ATG Web Commerce with the WebLogic application server a variety of intermittent problems have been seen such as memory leaks, high session counts, requests returning blank pages, HTTP 500 errors and BEA-101020 errors.

The server log may contain stacktraces similar to the following:

Viewing the /atg/dynamo/servlet/sessiontracking/GenericSessionManager component and listing the active sessions (click the View button) may show many ATG session scopes that are "expired, with active children." similar to the following screenshot: 

 

 

Cause

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In this Document
Symptoms
Cause
Solution
 Fix
 1. PageFilter Mapping in web.xml
 2. Custom Servlets Should Extend DynamoServlet
 Workarounds 
 1. Disable KeepAlive 
 2. Disable Session Expiration Events
 Additional Information
References


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