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From "Jeff Larsen" <lar...@qec.com>
Subject Re: Apache + Tomcat sometimes pegs CPU
Date Fri, 02 Aug 2002 19:04:39 GMT
If you read the fine print below, you'll see that I am
running my server on using UNIX. Most webmasters use
some form of Unix/Linux. Please don't be angry with us.
We have our own troubles with trying to build mod_jk on
our various platforms, so we can sympathize. However, I
did find the following page which discusses installation of
mod_jk.dll on Windows. It includes a link (which works) to
a downloadable version of mod_jk.dll at the jakarta web site.

http://www.tek-tips.com/gfaqs.cfm/lev2/3/lev3/22/spid/65/sfid/1814

HTH,

Jeff

----- Original Message -----
From: "steve Burrus" <burrus1@swbell.net>
To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
Sent: Friday, August 02, 2002 1:44 PM
Subject: Re: Apache + Tomcat sometimes pegs CPU


> Hello there, I need the file--mod_jk.dll--to be able to smoothly
"connect" the
> Tomcat 4.0.* Server with the Apache HTTP Server!!! Does anyone out
there have the
> download link to access and then install this file WHICH I STILL
DON'T HAVE! I am
> getting sick and tired of seeing other members of the tomcat users
newsgroup
> referring to this file, but I still do not have access to it!!!
>
**********************************************************************
***************
>
> Jeff Larsen wrote:
>
> > Thanks, I figured that I wasn't the first one to see
> > this. Is my current mod_jk going to need upgrading also?
> >
> > Jeff
> >
> > ----- Original Message -----
> > From: "Tim Funk" <funkman@joedog.org>
> > To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
> > Sent: Friday, August 02, 2002 12:28 PM
> > Subject: Re: Apache + Tomcat sometimes pegs CPU
> >
> > > Upgrade to 4.0.4. Earlier (4.0.X) versions have a problems with
POST
> > > requests when the browser terminates before sending enough data.
> > This
> > > caused an infinite loop between apache and tomcat.
> > >
> > > Here is the simple way to reproduce, (and watch your cpu go way
up):
> > > ------------------------------------
> > > % telnet webserver 80
> > > POST /somepage.jsp HTTP/1.1
> > > Host: webserver:80
> > > Connection: Close
> > > Content-Type: application/x-www-form-urlencoded
> > > Content-Length: 200
> > > PutStuff here and kill telnet session before 200 chars
> > > ------------------------------------
> > >
> > > -Tim
> > >
> > > Jeff Larsen wrote:
> > > > I forgot to mention... Even when the CPU is pegged,
> > > > the site functions normally.
> > > >
> > > > Jeff
> > > >
> > > > ----- Original Message -----
> > > > From: "Jeff Larsen" <larsen@qec.com>
> > > > To: "tomcat-user" <tomcat-user@jakarta.apache.org>
> > > > Sent: Friday, August 02, 2002 12:02 PM
> > > > Subject: Apache + Tomcat sometimes pegs CPU
> > > >
> > > >
> > > >
> > > >>I'm running Apache 1.3.23/Tomcat 4.0.3 (jdk1.3.1)
> > > >>on Solaris 7 connected with mod_jk. Sometimes I
> > > >>I find that the CPU on the web server box is pegged
> > > >>at 100%. It's a dedicated server and I am bouncing
> > > >>Apache and Tomcat once a week to help alleviate the
> > > >>problem. If I didn't restart every week, it would just
> > > >>be a matter of time before things spiraled out of
> > > >>control again.
> > > >>
> > > >>The processes that are responsible are java (Tomcat)
> > > >>and libhttpd.ep (Apache, with --enable-rule=SHARED_CORE)
> > > >>each with about 50% of the CPU.
> > > >>
> > > >>If I bounce Tomcat, no change. If I bounce Apache,
> > > >>it returns to normal (low) CPU usage. I have Apache
> > > >>running on other machines without Tomcat and this
> > > >>does not happen.
> > > >>
> > > >>So it's got to be a mod_jk thing. There are no log
> > > >>messages of any significance. Any ideas on how to
> > > >>fix it?
> > > >>
> > > >>Thanks,
> > > >>
> > > >>Jeff
> > > >>
> > > >>
> > > >>
> > > >>--
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> > > >
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> > > >
> > > >>For additional commands, e-mail:
> > > >
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> > > >
> > > >
> > > >
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> > > >
> > > >
> > >
> > >
> > >
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