Hi,

I am trying to do a JMeter test with my custom application that runs as a search service and returns results using Hibernate Search.

With 200 threads with 10 secs ramp up time the result is always within 200-300 ms.

However on higher load of 300+ the search seems to go bad. I tried to check where exactly is the bottleneck and it seems with this line of code


List searchResults= hibernateQuery.list();

The service runs in the context of JBoss App server. I have http thread count set to 2000 in JBoss and DB pool size to 400.

Hi,



on this level the problem can still lie on multiple levels. I think you need to dig a little deeper and give also some more background. At this level the problem could be Hibernate ORM (data model, session management, lazy loading, cahce configuration), Hibernate Search (Lucene queries) or the database.

Are you using a profiler? I recommend attaching a profiler to determine where exactly the bottleneck lies. Also have a look at the various log files (for Hibernarte, but also your DB logs). Also have a log at your db status and whether there are is contention there.

--Hardy