[AMQ-1849] Slave threads increasing when sending to temporary queue

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.2.0
• Fix Version/s: 5.2.0

Environment

Pure master/slave
JBoss 4.0.5 GA (on Java 1.5.0_14)
few days old ActiveMQ 5.2.0-SNAPSHOT (on Java "1.6.0_06")

• Assignee: Gary Tully
• Reporter: Hans Bausewein
• Created: 09/Jul/08 17:29
• Updated: 14/Oct/08 12:57
• Resolved: 05/Sep/08 20:52

Description

Deployed the attached TextMDB (modified JBoss example) to our JBoss 4.0.5 GA server (cluster).

• send a message to "queue.A" with Reply To set to "queue.REPLY_A"

The TextMDB bean:

• creates a temporary queue with NON_PERSISTENT delivery mode
• forwards message body to "queue.B" and sets the reply queue to this temporary queue
• another (or the same) instance of TextMDB replies and adds some text, replies to the temporary queue
• the first TextMDB replies to "queue.REPLY_A"

Works fine, except that every time a temporary queue message is sent, the number of threads on the slave increases by 3.

On the master the threads are destroyed after a while, but on the slave they persist, growing to "OutOfMemoryError: unable to create new native thread"

Temporary queue Thread Name example: TempQueue: ID:

{HOSTNAME}

-59619-1215591084487-0:16:5
+ 2 topic threads

That thread ID can be found ActiveMQ messages in the attached JBoss log.

Have I created a bug im my code or have I found a bug in the ActiveMQ server?