Hi, I have the following scenario where multiple consumers poll the same queue to retrieve messages in a point to point model. The acknowledgment mode being used is: Individual_Acknowledge
My requirement is that the message should be processed only once. From what I understand: If a consumer has retrieved a message which has not been acknowledged yet then the other consumers will not be to retrieve this message till the session of the first consumer is closed. * Is my understanding correct? * I ran a couple of threads which retrieve messages from the queue (the queue has only one message). Both threads do not acknowledge the message. The first thread runs every 60 sec while the second thread runs every 20 sec.Each thread creates a separate connection to ActiveMQ. Each thread tries to retrieve the messages before it sleeps and disconnects the session after it finishes sleeping. Following is the output of this program. The first thread retrieves the message first.While it is holding the session, the second thread does not retrieve a message but when the first thread releases the connection, none of the threads immediately pick up the message again. It is a while before a thread picks up the message. *I wanted to know as to why this is happening?* FIRST - NUMBER OF MESSAGES RETRIEVED: 1 SECOND - NO MESSAGES RETRIEVED SECOND - CLOSED CONNECTION SECOND - NO MESSAGES RETRIEVED SECOND - CLOSED CONNECTION SECOND - NO MESSAGES RETRIEVED *FIRST - CLOSED CONNECTION FIRST - NO MESSAGES RETRIEVED SECOND - CLOSED CONNECTION SECOND - NO MESSAGES RETRIEVED SECOND - CLOSED CONNECTION SECOND - NO MESSAGES RETRIEVED SECOND - CLOSED CONNECTION* SECOND - NUMBER OF MESSAGES RETRIEVED: 1 FIRST - CLOSED CONNECTION FIRST - NO MESSAGES RETRIEVED SECOND - CLOSED CONNECTION SECOND - NO MESSAGES RETRIEVED SECOND - CLOSED CONNECTION SECOND - NO MESSAGES RETRIEVED -Ashish -Ashish -- View this message in context: http://activemq.2283324.n4.nabble.com/Point-to-Point-Model-Multiple-Consumers-ActiveMQ-5-3-2-tp3684188p3684188.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
