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From Christine Ho <opensrc...@yahoo.com>
Subject Re: inprocess Tomcat/apache via mod_jk
Date Wed, 17 Aug 2005 01:51:36 GMT
Hi,
   Thanks a lot. I am really appreciated for your
reply. How about the worker MPM? My team is running
the httpd.worker on RHEL4. The current setting is:

StartServers 1
ServerLimit 1

MaxClients 64
MinSpareThreads 32
MaxSpareThreads 64
ThreadsPerChild 64 

Does the inprocess Tomcat 5.5.9 work for the worker
MPM?

thanks,
Christine

--- Bill Barker <wbarker@wilshire.com> wrote:

> Well, inprocess doesn't really work for any MPM on
> *nix systems (e.g. with
> the prefork MPM, you end up with MaxChild copies of
> Tomcat running :).  As a
> result, there just hasn't been that much interest in
> implementing (or even
> back-porting) a feature that only works on Windows
> and NetWare.
> 
> 
> ----- Original Message -----
> From: "Christine Ho" <opensrc888@yahoo.com>
> To: <tomcat-dev@jakarta.apache.org>
> Sent: Tuesday, August 16, 2005 3:30 PM
> Subject: inprocess Tomcat/apache via mod_jk
> 
> 
> Hi,
>    I have posted this email a month ago. I just
> wonder
> if any developer on mod_jk can answer my question. I
> would like to have inprocess Tomcat 5.5.9 running in
> Apache 2.x if possible.
> 
> thanks again,
> Christine
> 
> 
> Hi,
>    I tried to setup Tomcat 5.5.9 running inside the
> apache server 2.x via the mod_jk on RHEL4. I got the
> following error:
> [debug] open_jvm2::jk_jni_worker.c (1055): JVM
> created
> [emerg] get_bridge_object::jk_jni_worker.c (1097):
> Can't find class
> org/apache/tomcat/modules/server/JNIEndpoint
> 
> I looked at the mod_jk source codes and found out
> that
> the mod_jk supports the TC32_BRIDGE_TYPE and
> TC33_BRIDGE_TYPE. It doesnt support bridge type of
> tomcat 4.x and up. Plus the tomcat 5.5.9 doesnt have
> the JNIEndpoint.class.
> 
> However, it seems to me that the deprecated mod_jk2
> supports bridge type of tomcat 4.x and up because it
> tries to instantiate the class
> org/apache/jk/apr/TomcatStarter.class which exists
> in
> tomcat-ajp.jar.
> 
> I really dont understand why the mod_jk supports
> tomcat 3.x only whereas the deprecated mod_jk2
> supports tomcat 4.x and 5.x. Can somebody please
> tell
> me why?
> 
> Also is it easy to have mod_jk to support
> TC55_BRIDGE_TYPE? Based on the mod_jk source codes
> jk_jni_worker.c, I think I just need to define the
> TC55_JAVA_BRIDGE_CLASS_NAME to be
> org/apache/jk/apr/TomcatStarter.class and then
> assign
> it to the btype. Is it just that simple?
> 
> Another question is what the disadvantages of
> running
> tomcat inside the apache are. I googled and it seems
> to me that not too many people try to run inprocess
> tomcat inside apache. I would be interested in
> adding
> the 5.5 bridge type to the mod_jk.
> 
> thanks,
> Christine
> 
> 
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