[TRINIDAD-1812] Memory use is very high in J2EE cluster with session replication (Weblogic) when using pageflowscope

• Type: Bug
• Status: Reopened
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 1.2.7-core
• Component/s: Components
• Environment: Weblogic 10 and all versions forward.
• Assignee: Unassigned
• Reporter: Nicolai Marck Ødum
• Created: 21/May/10 10:01
• Updated: 19/Apr/16 14:16

Description

In a Weblogic cluster with session replication the memory use (the size of the web session) is much higher on the server that has a copy of the session then on the primary server.

The problem is related to multiple session attributes that have references to the same shared object in Trinidad. This design has a negative side effect with Weblogic because of the transitive closure ff session attributes. The shared object (and the object graph below it) is copied for each attribute.

I have created a simple guide with a modified example of the demo application from Trinidad that shows the problem.

Issue Links

• blocks: TRINIDAD-1779 Duplicate Attributes require too much memory