Hi
The connectionTimeout parameter does not solve my problem. I don't know exactly what
it does but it does not free a busy processor after some time. I will illustrate my
problem with som source code. My servlet is sleeping 5 min to simulate that it is
hanged/deadlocked. A wan't some way to automatcly kill/abort it after say 20s.
The servlets doGet method:
PrintWriter out = response.getWriter();
out.println("Start");
out.flush();
try {
Thread.currentThread().sleep(300000); // Simulate hang
} catch(Exception x) {
x.printStackTrace();
}
out.println("Finish");
My server.xml
<Server port="8005" shutdown="SHUTDOWN" debug="0">
<Service name="Tomcat-fox">
<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="808" minProcessors="1" maxProcessors="5" acceptCount="1"
connectionTimeout="20000"/>
<Engine name="Tomcat-fox" defaultHost="localhost">
<Realm className="org.apache.catalina.realm.MemoryRealm" />
<Host name="localhost" appBase="">
<Context path="/fox_v2.0"
docBase="c:\data\fox\fox_dev\site" debug="0" reloadable="true"/>
</Host>
</Engine>
</Service>
</Server>
Is there a way to do this? If tomcat can't can I do it myself with some extra thread
monitoring and releaseing? I have tried killing (with Thread.destroy()) the thread but
this doesn't seem to work, I only run out of memory after a while becuase resource
probably arent freed correctly. How do I free a processor from my code?
Med vänliga hälsningar
Daniel Carlsson
Gimlisoft AB
Email: [EMAIL PROTECTED]
Tel: 0709-744570, 031-189024
-----Ursprungligt meddelande-----
Från: Mauricio Nuñez <[EMAIL PROTECTED]>
Skickat: 2003-08-07 16:51:56
Till: Tomcat Users List
Ämne: Re: Freeing processors
> Hi
>
> the HttpConnector haa a connectionTimeout parameter. Set this to a low
> razonable value, as 20000 ( 20 seconds )
>
> I was having a similar problem, using the JkConnector, but because my app
> wasn't releasing db connections to the dbcp pool. Then, the "run out of
> processors ..." is more a signal the leakaging in your app. (IMHO :-)
>
> Check the timeout of your CORBA connections if available.
> Att
>
> MN
>
>
> El Jue 07 Ago 2003 08:12, Daniel Carlsson escribió:
> > Hi
> >
> > My problem is that tomcat runs out of processors and I see "No processor
> > available, rejecting this connection" in the log file. By reading earlier
> > posts a I understand that each processor is a thread and is not freed until
> > it is returned by my code, my code is hanging somewhere.
> >
> > The problem is that my servlet (the only thing running in tomcat) only
> > "forwards" requests threw CORBA to a big app that I can't change, and its
> > in their the code hangs.
> >
> > So, how can I solve this? The perfect solution would be if tomcat could
> > automaticly free processors after some timeout ( 60 s) but I have not found
> > such a feature/setting, does it exist? If not, could I do some small hack
> > in my servlet that monitors and somehow terminates (kills thread or
> > something) the request after 60s and therby freeing the processor?
> >
> > I am running tomcat 4.1.12, java 1.4.0_04, redhat linux 9. I am using the
> > HttpConnector.
> >
> >
> > Thank you
> >
> > Daniel Carlsson
> > Gimlisoft AB
> > Email: [EMAIL PROTECTED]
> > Tel: 0709-744570, 031-189024
> >
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