Monitoring Coherence

◀️ Coherence CLASSPATH 🔗 Coherence perf_test App ▶️

JVisualVM Plugin

Coherence installation includes a JVisualVM plug-in for monitoring Coherence cluster members in an aggregated view. The plug-in is located in the $COHERENCE_HOME/plugins/jvisualvm directory. Follow the steps below to install the plug-in.

Start jvisualvm.
Select the Tools/Plugins menu from the VisualVM console.
Select the Downloaded tab.
Select the Add Plugins... button.
Find and open the jvisualvm plugin from the dialog. It is located in the $COHERENCE_HOME/plugins/jvisualvm directory.
From the plugin list, select Coherence-JVisualVM and select the Install button.

Once the plugin has been installed, you can use the show_cluster -long command to display the JMX URL. By default, PadoGrid enables JMX on all members. You can copy any member's JMX URL and paste it to VisualVM when adding a remote connection.

show_cluster -long

Output:

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       WORKSPACE: /c/Users/dpark/Work/Padogrid/workspaces/rwe-wsl/ws-coherence
         CLUSTER: mycoherence
         PRODUCT: coherence
    CLUSTER_TYPE: coherence
             POD: local
        POD_TYPE: local

01        Member: mycoherence-member-padogrid-01
           STATE: Running
             PID: 2368
     MEMBER_PORT: 9000
      DEBUG_PORT: 9101
 PROMETHEUS_PORT: 8091
         JMX_URL: service:jmx:rmi:///jndi/rmi://padogrid:12001/jmxrmi
     Working Dir: /c/Users/dpark/Work/Padogrid/workspaces/rwe-wsl/ws-coherence/clusters/mycoherence/run/mycoherence-member-padogrid-01
        LOG_FILE: /c/Users/dpark/Work/Padogrid/workspaces/rwe-wsl/ws-coherence/clusters/mycoherence/log/mycoherence-member-padogrid-01.log

02        Member: mycoherence-member-padogrid-02
           STATE: Running
             PID: 2606
     MEMBER_PORT: 9001
      DEBUG_PORT: 9102
 PROMETHEUS_PORT: 8092
         JMX_URL: service:jmx:rmi:///jndi/rmi://padogrid:12002/jmxrmi
     Working Dir: /c/Users/dpark/Work/Padogrid/workspaces/rwe-wsl/ws-coherence/clusters/mycoherence/run/mycoherence-member-padogrid-02
        LOG_FILE: /c/Users/dpark/Work/Padogrid/workspaces/rwe-wsl/ws-coherence/clusters/mycoherence/log/mycoherence-member-padogrid-02.log

         CLUSTER: mycoherence
    CLUSTER_TYPE: coherence
 Members Running: 2/2
         Version: 14.1.1.0.0
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