Web session persistent store cleanup with buddy replication
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Key: JBAS-5628
URL:
http://jira.jboss.com/jira/browse/JBAS-5628
Project: JBoss Application Server
Issue Type: Sub-task
Security Level: Public (Everyone can see)
Components: Clustering, Web (Tomcat) service
Reporter: Brian Stansberry
Assigned To: Brian Stansberry
Fix For: JBossAS-5.0.0.CR1
See parent issue for basic problem description. This subtask is for when buddy replication
is enabled.
With BR, the backup copies of sessions are always in another area of the JBC tree, not the
main tree. If a webapp undeploys, it's area of the main tree is useless. If it
restarts, any persistent store data in the main tree is possibly out of date, superseded
by data in another cache that has taken ownership of the session. So, the webapp's
main tree region should be cleared. If a request comes in for a session owned by the
previous version of the webapp (i.e. the session didn't fail over while the webapp was
undeployed on the node), it can be gravitated from wherever the backup copy resides.
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