Difference between Pending Messages and Enqueue Counter in Active MQ?

activemq messages
Srinivas picture Srinivas · Oct 16, 2011 · Viewed 26.9k times · Source

In the Active MQ Admin console of what is the difference between "Number Of Pending Messages" and "Messages Enqueued"? When a Message is placed on to the queue, should both these values should match?

Answer

Laures picture Laures · Oct 18, 2011

pending messages = number of messages CURRENTLY waiting for delivery in the destination (the current size of the queue)

enqueued messages = number of messages that where enqueued in the destination since the last statistic reset. This number can only rise.

dequeued messages = messages delivered from the destination to consumers. this number can be higher that the number of enqueued messages if a message was delivered to multiple consumers (topics).

Related questions

How to import an existing X.509 certificate and private key in Java keystore to use in SSL?

I have this in an ActiveMQ config: <sslContext> <sslContext keyStore="file:/home/alex/work/amq/broker.ks" keyStorePassword="password" trustStore="file:${activemq.base}/conf/broker.ts" trustStorePassword="password"/> </sslContext> I have a pair of …

Read More
ActiveMQ or RabbitMQ or ZeroMQ or

We'd be interested to hear any experiences with the pros and cons of ActiveMQ vs RabbitMQ vs ZeroMQ. Information about any other interesting message queues is also welcome.

Read More
JMS Topic vs Queues

I was wondering what is the difference between a JMS Queue and JMS Topic. ActiveMQ page says Topics In JMS a Topic implements publish and subscribe semantics. When you publish a message it goes to all the subscribers who are …

Read More