Re: JMS QueueBrowser does not return actual number of messages in the queue

[Timothy Bish]

On 6/19/19 12:13 PM, cooshal wrote:
Hi:
I am using ActiveMQ version 5.15.8

I have the following code fragment, which is basically there to count the
number of messages in a particular queue (here, it is tst.errors)

brokerConnection = connectionFactory.createConnection();
session = this.createSession(brokerConnection);
brokerConnection.start();

if (selector == null) {
     selector = "";
}

Queue queue = session.createQueue("tst.errors");
queueBrowser = session.createBrowser(queue, selector);

Enumeration e = queueBrowser.getEnumeration();
while (e.hasMoreElements()) {
     e.nextElement();
     queueEntriesCount++;
}

But, this does not retrieve messages more than 400.

This is expected as the default maxBrowsePage size configuration is 
400.  See:

http://activemq.apache.org/per-destination-policies.html


I knew that this was a
problem with the Jolokia API of ActiveMQ. But, I did not realize that there
was similar limitation with JMS API as well. Is there a way to retrieve all
the messages via JMS API?

Regards,
Cooshal.



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Tim Bish