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From Rainer Jung <>
Subject Re: jk_mod and binding tomcat's root to an apache directory
Date Sun, 04 Nov 2007 15:41:23 GMT
Shug Boabby schrieb:
> Thanks again Rainer,
> I think we're getting somewhere with this... but unfortunately all
> responses to are completely empty. This
> means something is happening because the response to
> is that it doesn't exist (because the rewrite rule doesn't apply if
> there is no trailing slash and it's trying to find the static page to
> serve).
> I have noted the e-mail wrapping of the line and corrected for it.
> My file looks like
> workers.tomcat_home=/usr/share/tomcat5.5
> workers.java_home=/usr/lib/jvm/java-6-sun
> ps=/

Delete the first three lines. They are non-functional and obsolete.

> worker.list=worker1
> worker.worker1.port=8009
> worker.worker1.type=ajp13
> worker.worker1.lbfactor=1

I don't understand the next line. It should not have any effect.

> /=worker1
> and my apache configuration (after module loading etc) has
> RewriteEngine On
> RewriteRule /tomcat/(.*) /$1
> [E=JK_WORKER_NAME:worker1,H=jakarta-servlet,PT]
> I don't have any explicit JkMount lines anywhere and I'm not seeing
> anything unusual in my logs.

No JkMounts is OK, they are replaced by the RewriteRule. Are you using
Apache 2.2?

Now we go into debugging mod_rewrite and mod_jk.

RewriteLogFile logs/rewrite.log
RewriteLogLevel 9

will give you information, what mod_rewrite does with your URL.

JkLogFile logs/mod_jk.log
JkLogLevel debug

will give us a lot of information, which URL gets passed to mod_jk, and
what it does with it.

> Have any further ideas? I really appreciate your help on this.
> On 4 Nov 2007, at 14:04, Rainer Jung wrote:
>> LoadModule rewrite_module modules/
>> RewriteEngine On
>> RewriteRule /tomcat/(.*) /$1
>> [E=JK_WORKER_NAME:myworker,H=jakarta-servlet,PT]
>> The RewriteRule line extends until "PT]"
>> This will activate JK forwarding via a worker called myworker (you can
>> replace it by the name of your worker) for everything that starts with
>> /tomcat/ and also changes the forwarding URL by stripping the leading
>> "/tomcat".
>> FOR Apache we use mod_rewrite for those tricks, because it is a modular
>> server and there exists many usefuk modules. For IIS this kind of
>> ability is already build into the JK isapi plugin.
>> Is that what you are looking for?
>> Note that now we don't replace /tomcat by /servlet-examples, so a
>> working request now would be /tomcat/servlet-example/something.

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