ActivemMQ slows down after a rather small number of messages
------------------------------------------------------------
Key: AMQ-903
URL: https://issues.apache.org/activemq/browse/AMQ-903
Project: ActiveMQ
Issue Type: Bug
Affects Versions: 4.0.1
Reporter: Daniel Aioanei
Attachments: activemq.xml
I have activemq with a postgresql backend running as a standalone server, and a
client application that produces persistent messages in 50 threads. Each time I
run my app it pushes as many msg as it can for about 62.5 seconds after which
it quits. Although initially it works fast, every time I run my app it produces
less messages:
enqueue speed 50 threads: msg/second: 334.18333333333334
second time: msg/second: 194.15
third time: msg/second: 123.0
fourth time: msg/second: 58.61666666666667
fifth time: msg/second: 19.433333333333334
sixth time: msg/second: 33.81666666666667
seventh time: msg/second: 11.783333333333333
eigth time: msg/second: 24.733333333333334
ninght time: msg/second: 10.883333333333333
After I ran the above test there seem to be 50241 msg in that queue.
activemq=> select count(1) from activemq_msgs ;
count
-------
50241
(1 row)
activemq=> select count(1) from activemq_acks ;
count
-------
0
(1 row)
Note that I don't have any message consumers active for this test.
Here is the way the client app connects:
<bean id="jmsResourceAdapter"
class="org.apache.activemq.ra.ActiveMQResourceAdapter">
<property name="serverUrl"
value="tcp://localhost:61616?wireFormat.cacheEnabled=false&wireFormat.tightEncodingEnabled=false"
/>
</bean>
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