Any simple way to get the queue length of an ActiveMQ?

java jms activemq
user705414 picture user705414 · Oct 10, 2011 · Viewed 17.1k times · Source

How to obtain the queue length (number of unconsumed messages sent to queue) in ActiveMQ, using Java?

Answer

Dag picture Dag · Oct 10, 2011

You have to use JMX, since the Queue interface does not provide such information.

Example of retrieving the size of a specific queue:

// connection
String url = "service:jmx:rmi:///jndi/rmi://localhost:1099/jmxrmi";
JMXConnector connector = JMXConnectorFactory.connect(new JMXServiceURL(url));
MBeanServerConnection connection = connector.getMBeanServerConnection();
// get queue size
ObjectName nameConsumers = new ObjectName("org.apache.activemq:type=Broker,brokerName=localhost,destinationType=Queue,destinationName=myqueue");
DestinationViewMBean mbView = MBeanServerInvocationHandler.newProxyInstance(connection, nameConsumers, DestinationViewMBean.class, true);
long queueSize = mbView.getQueueSize();

Reference: ActiveMQ JMX, Required MBeans

Example: managing ActiveMQ with JMX APIs

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