Tomcat Servlet Session Replication Failures.

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Tomcat Servlet Session Replication Failures occur when a Tomcat server fails to replicate session data between instances. This can result in users losing their session data or being redirected to a different instance, causing disruption to the application's functionality.



Check if all Tomcat instances are up and running

Check if session replication is enabled in server.xml

Check if the session data is being replicated between instances

Check if the session data is being stored correctly in the shared directory

Check if the firewall is blocking the replication traffic


If the issue persists, try increasing the session timeout value to allow more time for the session data to be replicated.

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