Are you using Tomcat standalone or with Apache? If standalone, then yes, I
would recommend using the latest version of Tomcat 4.x. If you're using
Apache, I would stick with 3.3 until the mod_jk code is fully implemented
with the 4.x versions.
Thanks,
--jeff
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: "Tomcat Users List" <[EMAIL PROTECTED]>
Sent: Saturday, December 29, 2001 2:09 PM
Subject: Tomcat 3.3: ThreadPool bug (IS IT SAFE FOR PRODUCTION USE???)
>
>
> Hi there,
>
> I am trying to deploy our production service on the Tomcat 3.3 platform
> (Solaris8, JDK 1.3.1) but am very often facing the instability problems.
> Somehow, the ThreadPool just runs out of steam and blocks Connectors from
> receiving any more requests.
>
> Looking into the source code, I have noticed some very interesting
> "constructions" in the ThreadPool class. Namely, the setters for the
> maxThreads, maxSpareThreads and minSpareThreads are having very little
> influence as the start() method is resseting the values to the default
> constants ?!?!
>
> public ThreadPool() {
> maxThreads = MAX_THREADS;
> maxSpareThreads = MAX_SPARE_THREADS;
> minSpareThreads = MIN_SPARE_THREADS;
> currentThreadCount = 0;
> currentThreadsBusy = 0;
> stopThePool = false;
> }
>
> public synchronized void start() {
> stopThePool=false;
> currentThreadCount = 0;
> currentThreadsBusy = 0;
> maxThreads = MAX_THREADS;
> maxSpareThreads = MAX_SPARE_THREADS;
> minSpareThreads = MIN_SPARE_THREADS;
>
> adjustLimits();
>
> openThreads(minSpareThreads);
> monitor = new MonitorRunnable(this);
> }
>
> Also, the situation when there are no more available Threads in the pool
is being handled in a special way which JUST BLOCKS IN THE INFINITE LOOP :
> -(((
>
> Is the code of the Tomcat4 equaly immature or there is a fair chance to
> role a productiv system on top of it?
>
> Thanks in advance for any comments
>
> Drasko Kokic
>
>
>
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