Hi. First of all, i am using <Executor> in the configuration of the
connectors, and so if i understand you correctly, it means that the
requestors are supposed to reduce? at least after i see that messages are
stuck.
Second, i am using apache-tomcat-6.0.18, jdk1.6.0_12, running on Windows XP.

While you're at it, tell us the Tomcat version, JVM version, and platform
you're running on.

Christopher Schultz-2 wrote:
> 
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> Michal,
> 
> On 12/15/2009 9:55 AM, Caldarale, Charles R wrote:
>>> From: Michal Singer [mailto:michal.sin...@expand.com]
>>> Subject: Accumulation of Request Processors objects causes tomcat
>>> stuck?
>>>
>>> i am running an application on tomcat which gets stuck when
>>> processing incoming messages after a while.
>> 
>> So take a thread dump and find out what they're waiting for.
>> 
>> While you're at it, tell us the Tomcat version, JVM version, and platform
>> you're running on.
>> 
>>> I see accumulation of request processors objects
>>> in jconsole under: Catalina\RequestProcessor\http-8080.
>>> What do these objects mean, what does it mean that they accumulate?
>> 
>> That's normal; those are threads Tomcat creates to process requests.
> 
> More specifically, unless you are using an <Executor> (unless you set
> this up yourself, you are not), your <Connector> will allocate as many
> threads as are required to serve the client demand (up to the configured
> maxThreads), but will never release them. <Executors> are smarter than
> that and can take request processor threads out of service if you feel
> strongly about reducing the number of idle threads.
> 
> So, the presence of lots of threads is not a direct indication that
> anything is amiss.
> 
> - -chris
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