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From KumarR <>
Subject Publishing to Topic is very slow in higher loads ActiveMQ5.2.
Date Thu, 14 May 2009 10:33:04 GMT

Hi All ,

I am having problem with publishing messages to Topic. It's taking too much
time to publish a message. Below are the details.

Test Case:
The Client  is publishing messages to RequestQueue. and waiting responses on
ResponseTopic using a co-relation id.
Server program consuming messages from RequestQueue using Spring Message
POJOs. These POJOs after consuming and processing the messages,
forms the response message and publishes to the ResponseTopic using
The client using blocked receive(TIMEOUT) receive responses from
ResponseTopic using Message selector with co-relation id.

Observations: at higher loads, around 3000 conc users, the publishing
response messages back to Response Topic becoming slow; 
taking around 5 secs to 10 secs. otherwise in 2000 conc users load, it was
taking around 100 ms-120 ms.
Setup Configuration:
We are using ActiveMQ 5.2 on Sun Solaris 10 - SPARC JVM 1.6_16;
Topic has Non-Durable Consumer;  we use Non-Transactional, Non-Persistent
Client program is a WebApplication running on JBoss-JVM instance on server
machine 1
ActiveMQ is a standalone broker jvm running on server machine 2
Server program is another backend application (not web-application) on
another Jboss-JVM instance on server machine2.

Can any one help in solving this problem ?


Kumar Ravella
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