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From "Hans Bausewein (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AMQ-1849) Slave threads increasing when sending to temporary queue
Date Thu, 10 Jul 2008 09:42:00 GMT

     [ https://issues.apache.org/activemq/browse/AMQ-1849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hans Bausewein updated AMQ-1849:
--------------------------------

    Attachment: activemqjee-0.0.2-src.tar.gz

Update 0.0.2:

- added a stand-alone test
- delete the temporary queue and close its (locally created) session


The problem on the slave persists.

To run the test do something like:

java -cp conf:lib/log4j-1.2.14.jar:lib/activemq-all-5.2-SNAPSHOT.jar:lib/activemqjee-0.0.2.jar
org.activemq.jms.StandaloneApp

With libraries in "lib" and "log4j.xml" and "jndi.properties" in "conf".

"jndi.properties" contains the fail-over URL:

  java.naming.provider.url=failover:(tcp://masterhost:61616,tcp://slavehost:61616)


BTW: Pure master/slave does not work with 5.1.0, so I cannot test that one. ( see AMQ-1585
)



> Slave threads increasing when sending to temporary queue
> --------------------------------------------------------
>
>                 Key: AMQ-1849
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1849
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 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")
>            Reporter: Hans Bausewein
>         Attachments: activemqjee-0.0.1-src.tar.gz, activemqjee-0.0.2-src.tar.gz, jboss.log
>
>
> 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?

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