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Posted to users@tomcat.apache.org by Renato Weiner <re...@yahoo.com> on 2001/07/02 16:30:40 UTC
RE: Killing endless loop servlet - howto ? killing JVM or unload class ?
> OK, no one's answered this yet, so,...
>> First, I don't know if it's killing a thread is the right approach. Should I do that, without shutdown Tomcat ?
> So, why are you creating an infinite loop? I mean, if you didn't, you wouldn't have to kill it.
The problem is my environment. Since this is a webhosting, I cannot control what my users do. I'm 100% sure that they will create code that will run forever. I need to find a way to avoid this.
> If you're generally asking how one can kill threads in Java, you could use java.lang.Thread.stop() (but read the deprecation warning). But as a rule, not creating infinite loops is a much better strategy.
>> Is there a way to set a 'time-out' for a Servlet ?
> Not the way you mean. You can set a timeout for a session (by modifying your web.xml); but AFAIK, the only way to set a timeout for a request would be on your browser.
What about a patch for PoolTcpConnector ? Anyone ?
Thanks !
-----Original Message-----
From: Renato Weiner [mailto:reweiner@yahoo.com]
Sent: Monday, July 02, 2001 6:03 AM
To: tomcat-user@jakarta.apache.org
Subject: Killing endless loop servlet - howto ? killing JVM or unload class
?
Hi all,
I'm rolling out a successful Tomcat instalation in a shared environment (
it's a great software ! ). But I have a concern.
I created a servlet that loops forever ( a very stupid one, by the way ).
When I executed it, it allocates a Tomcat thread and it just runs forever.
If I try to kill it after it consumed, let's say, 30 seconds of processing,
it ended up killing the whole JVM.
First, I don't know if it's killing a thread is the right approach. Should I
do that, without shutdown Tomcat ? Is there a way to set a 'time-out' for a
Servlet ? What I can doin this situation ? Is there an Interceptor that can
unload this class somehow ?
Thanks in advance
Renato - Brazil
P.S. I'm running Linux, kernel 2.4.3, Tomcat 3.2.2
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