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From Filip Hanik Mailing Lists <devli...@hanik.com>
Subject Re: Tomcat6 thread pool questions
Date Wed, 04 Apr 2012 16:15:42 GMT
In Tomcat 6, the default thread pool ignores minSpareThreads, but if you use <Executor name="threadpool"...>
and then <Connector executor="threadpool"
it will respect that value and you will see the expected the results

Filip


----- Original Message -----
> From: llowder@oreillyauto.com
> To: users@tomcat.apache.org
> Sent: Wednesday, April 4, 2012 7:50:24 AM
> Subject: Tomcat6 thread pool questions
> 
> 
> Greetings,
> 
> I was wondering if someone could help me understand how the
> threadpools are
> handled in tomcat6. I know that a lot of the functionality was moved
> to
> executors.
> 
> I set one up and using psi-Probe I could see that it was indeed
> killing off
> threads as I expected. However, the minSpareThreads did not seem to
> be used
> at all.
> 
> Is my understanding of that attribute correct, in that
> "minSparethreads"
> should be the minimum number of threads running at any point?
> 
> For example, if I have minSpareThreads set to 30, I should see 30
> threads
> when the server is idle, and between 30 and maxThreads when it is
> under a
> load, right?
> 
> That is not what I am seeing, as most of the time there are only 2-3
> threads with one busy thread while the server is idle or near idle.
> 
> If anyone could let me know either what I am missing or what it is I
> do not
> understand correctly, I would appreciate it.
> 
> Thank you.
> 
> Lee Lowder
> 
> This communication and any attachments are confidential, protected by
> Communications Privacy Act 18 USCS � 2510, solely for the use of the
> intended recipient, and may contain legally privileged material. If
> you are not the intended recipient, please return or destroy it
> immediately. Thank you.
> 
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