Some Java virtual machines (JVMs) enable remote monitoring via Java Management Extensions (JMX) or via the jstatd daemon. This note explains how to use the jvisualvm tool connect to a Sun JVM using either of those protocols.

1. Download the Java 6 JDK. The jvisualvm tool is included with the Java 6 JDK, which is available for downloading from Java SE Development Kit 6u16.
2. Enable the target JVM for remote monitoring. To enable the target JVM for remote monitoring, see SAS Note 41565, "Using the jstatd tool to remotely monitor a Java virtual machine."
3. Start the jvisualvm tool. The jvisualvm tool resides in the bin directory of the JDK. Execute the tool from this location. When the tool is running, the Java VisualVM window opens, as shown below:

   

4. Connect to the target JVM. Add the remote host by right-clicking Remote in the Applications list of the Java VisualVM window.

   

5. Activate the remote connection protocol. The instructions for this task vary, depending on which protocol (JMX or the jstatd daemon) that you choose to use.
   • For JMX, add a connection to the host as illustrated in the following display:

     

   • For the jstatd daemon, add a connection to the host as illustrated in the following display:

     

6. Initiate monitoring. When the connection is created, you simply double-click the connection. When you activate the connection, the right pane of the window shows three tabs: Overview, Monitor, and Threads.

   

   The following display shows an example of what you see if you click the Monitor tab.

   

   The following display shows an example of what you see if you click the Threads tab.

   

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