Jboss 4.0.0 configuration for load testing - thread pool, hs

[rahulap]

Hi,

I am performaing load testing on Jboss 4.0.0 and expecting 500 messages/second. I have simple HTTPServlet implemented which receives HTTP POST messages (approx 100 characters string) and put in hsql database table. (I have to use hsql :( )

1. What should be thread pool configuration in Jboss for such load? Below is server.xml of tomcat.

(server.xml)

< Connector port="8080" address="${jboss.bind.address}"
maxThreads="500" minSpareThreads="75" maxSpareThreads="150"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" / >

2. I understand that each request is handled by JBoss in *different* thread. So my application does not require their own thread pooling. Please correct me if wrong.

3. I am using inbuilt HSQL database for storing messages. What is maximum number of connection possible at a time with this database (basically, can HSQL handle this much load - as each message by thread is going to added in a table). What should be my min/max pool size of hsql?

(hsqbdb-ds.xml)

<!-- The minimum connections in a pool/sub-pool. Pools are lazily constructed on first use -->
<min-pool-size>30</min-pool-size>

<!-- The maximum connections in a pool/sub-pool -->
<max-pool-size>100</max-pool-size>

I have gone through tuning/slimming of jboss wiki and did optimization. But still i am getting connection refused in client. Also JBoss server memory grows over period of time eventually causing out of memory.
Does database connection plays here?

I am using -Xms512M -Xmx1024 option.
My Server is PIV 3 GHz - 2 GB - Windows XP SP2.
JBoss version 4.0.0 with inbuild HSQL database.

Appreciate your prompt reply.

Thanks

[ryan.campbell]

No, HSQLDB cannot handle that load. Its rediculous to use HSQLDB for "performance testing."

[rahulap]

Thanks ryan for quick reply.

How much hsql can hold? Any numbers would be of great help. e.g. 100 traps/sec? (till it reaches its file size limit of 8 GB).

Could standalone hsql server in different jvm/system gives better performance?

Also please comment on pool configuration and memory.

Thanks

[vishalgujar]

I want to configure clustering, i want to know detail steps changes including jboss,server.xml.
plz anybody help me out!

[abbey_fun]

For clustering of Jboss check out this link:-
http://tjworld.net/help/kb/jboss-clustering.html
But I recommend you to dig into the jboss documentation as well.

Abbey.