unfortunately we need advisories for temp destinations to work across
networks :(
On 7 Apr 2006, at 23:26, Andrew Lusk (JIRA) wrote:
[ https://issues.apache.org/activemq/browse/AMQ-677?
page=comments#action_36012 ]
Andrew Lusk commented on AMQ-677:
---------------------------------
Another solution that I've found to work, with no performance
penalty, is to simple not create / send on advisory topics for
temporary destinations. I'm not sure if this might break
something else internally though.
ActiveMQ broker leaks advisory topics
-------------------------------------
Key: AMQ-677
URL: https://issues.apache.org/activemq/browse/AMQ-677
Project: ActiveMQ
Type: Bug
Components: Broker
Environment: linux, near-trunk version of ActiveMQ
Reporter: Andrew Lusk
Attachments: ProducerTool.java
When I run the attached code, which AFAIK is completely legal JMS,
the ActiveMQ broker grows to 500+ mb and crashes due to being out
of heap space.
Some investigation with hprof has lead me to believe that the
advisory topics created by the MessageConsumers (and Producers,
but I use the same producer each time so that's not causing a
problem) are being put into a DestinationMap and not being removed.
The rough origin of this is in the addProducer call in
AdvisoryBroker, which creates the advisory topic.
Note that this memory is not freed when the DestinationInfo
removing the original temptopic is received, nor when the actual
client exits. The object lifetime of these advisory destinations
seems very poorly defined. If they are implicitly created by the
server, they should be implicitly destroyed by the same.
To reproduce, I've been running this code with -Dtopic=true and -
Dmax=10000 (though the problem shows up well before this amount).
This is just a modified version of the example ProducerTool (note
it doesn't actually send any messages).
Please verify the correctness of the attached code.
Andrew Lusk
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