Active sessions reported by Undertow are different across nodes even if using distributed cache

Solution Verified - Updated -

Issue

  • We have a JBoss EAP installation with 2 nodes configured with a distributed session cache:

            <cache-container name="web" default-cache="dist" module="org.wildfly.clustering.web.infinispan">
                <transport lock-timeout="60000"/>
                <distributed-cache name="dist">
                    <locking isolation="REPEATABLE_READ"/>
                    <transaction mode="BATCH"/>
                    <file-store/>
                </distributed-cache>
            </cache-container>
    

    The problem is that if we use jboss-cli.sh to check the active-sessionsfor an application, the numbers reported are different for each node.

    On node 1:

    bin/jboss-cli.sh -c "/deployment=example.war/subsystem=undertow:read-resource(include-runtime)" | grep "\"active-sessions\""
    "active-sessions" => 5572,
    
    

    On node 2:

    bin/jboss-cli.sh -c "/deployment=example.war/subsystem=undertow:read-resource(include-runtime)" | grep "\"active-sessions\""
    "active-sessions" => 6987,
    

Environment

  • Red Hat Enterprise Application Platform (EAP)
    • 7

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