On 25 April 2010 10:48, JKnight JKnight <beuknight@gmail.com> wrote:
> Dear all,
>
> My Cassandra server had thread leak when high concurrent load. I used
> jconsole and saw many, many thread occur.
>
Just because there are a lot of threads, need not imply a thread leak.
Cassandra uses a lot of threads.
Do you see the number of threads gradually increase during a soak test on
your test cluster? Can you dump the JVM info (I believe sending a signal
makes it dump this)?
The JMX information viewable via JConsole also gives you a list of threads.
Assuming you see this gradually increasing during the soak test, can you
tellwhich thread pool is increasing?
Mark
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