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Posted to users@tomcat.apache.org by Dan Higgins <Da...@austin.rr.com> on 2003/01/29 16:48:09 UTC
Possible CLOSE_WAIT problem
Hi,
If I set my maxProcessors sufficiently low (say 5), then run a script from
another machine that floods Tomcat with requests for a given JSP, eventually
Tomcat stops accepting socket connections at all.
Ok, that's to be expected when every processor thread is busy. BUT, when the
flood stops, all the threads let their socket connections remain in
CLOSE_WAIT and they never close them. This causes Tomcat to NEVER accept new
connections, until it's restarted.
I'm seeing this problem happen on a site with 600 max processors.
Eventually, it stops accepting connections and has to be restarted, every
couple days.
This is Tomcat 4.0.6 on Windows 2000, JDK 1.4.1_01.
Any idears??
Regards,
-Dan
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Re: Possible CLOSE_WAIT problem
Posted by Bill Barker <wb...@wilshire.com>.
Having just taken a look at the code, it does seem that this is a bug for
Tomcat 4.1 with the CoyoteConnector. Could you please submit it at
http://nagoya.apache.org/bugzilla?
"Dan Higgins" <Da...@austin.rr.com> wrote in message
news:ACEIKCIGAEOGOHGPJPIAOEEHCFAA.DanHiggins@austin.rr.com...
> Hi,
>
> If I set my maxProcessors sufficiently low (say 5), then run a script from
> another machine that floods Tomcat with requests for a given JSP,
eventually
> Tomcat stops accepting socket connections at all.
>
> Ok, that's to be expected when every processor thread is busy. BUT, when
the
> flood stops, all the threads let their socket connections remain in
> CLOSE_WAIT and they never close them. This causes Tomcat to NEVER accept
new
> connections, until it's restarted.
>
> I'm seeing this problem happen on a site with 600 max processors.
> Eventually, it stops accepting connections and has to be restarted, every
> couple days.
>
> This is Tomcat 4.0.6 on Windows 2000, JDK 1.4.1_01.
>
> Any idears??
>
> Regards,
> -Dan
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