ClientConsumerImpl occupies too much memory

[raysen_jia]

Dear Team,

I use hornetq 2.3.0.CR1. The message is about 1000/s.

I found the JVM memory is very high, then I use memory analysis tool, and get the following result. Any body know what is the problems?

100 instances of "org.hornetq.core.client.impl.ClientConsumerImpl", loaded by "org.apache.catalina.loader.WebappClassLoader @ 0x2ab9aff9e0" occupy 965,406,208 (56.65%) bytes.

Biggest instances:

    * org.hornetq.core.client.impl.ClientConsumerImpl @ 0x2ac13be018 - 103,212,072 (6.06%) bytes.

    * org.hornetq.core.client.impl.ClientConsumerImpl @ 0x2abf843748 - 103,211,624 (6.06%) bytes.

    * org.hornetq.core.client.impl.ClientConsumerImpl @ 0x2ac12aa910 - 103,211,432 (6.06%) bytes.

    * org.hornetq.core.client.impl.ClientConsumerImpl @ 0x2ac1166d40 - 103,211,408 (6.06%) bytes.

      * org.hornetq.core.client.impl.ClientConsumerImpl @ 0x2abf795810 - 56,253,032 (3.30%) bytes.

[gaohoward]

Hi,

You seems to have created many consumers. Why you need so many? Each consumer has a buffer to cache received messages. If you see the buffer is too big, it means your consumers are slow to process them. Take a look at "Flow Control" chapter in the manual and adjust your consumer settings accordingly.

Howard