mod_cluster throwing MEM: MEM: Can't read node in JBoss and cping/cpong errors in Apache

Solution Unverified - Updated -

Issue

  • I am running mod_cluster and seeing the following errors in Apache:

  • Apache httpd error_log :

        [debug] mod_manager.c(1957): manager_handler STATUS (/) processing: "JVMRoute=node1&Load=-1"
        [debug] mod_manager.c(1998): manager_handler STATUS  OK
        [error] ajp_cping_cpong: apr_socket_recv failed
        [debug] mod_proxy_cluster.c(1330): ajp_cping_cpong: Done
        [debug] mod_proxy_cluster.c(1432): proxy_cluster_try_pingpong: cping_cpong failed
  • Apache httpd Access Log :
"STATUS / HTTP/1.1" 500 630 "-" "ClusterListener/1.0"
  • And the following error(s) in JBoss:
   ERROR [org.jboss.modcluster.mcmp.impl.DefaultMCMPHandler] (ContainerBackgroundProcessor[StandardEngine[jboss.web]]) Error [MEM: MEM: Can't read node: {4}] sending command STATUS to proxy 10.0.1.1:17777, configuration will be reset

Environment

  • JBoss Enterprise Application Platform (EAP)
    • 5.0.1
  • mod_cluster
    • 1.0.10_CP02
  • JBoss Enterprise Web Server (EWS)
    • 1.0.1

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