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From Rainer Jung <>
Subject Re: status worker
Date Tue, 01 Apr 2008 15:07:48 GMT
Nuno Manuel Martins wrote:
> Hi,
> I tried before to do as you said and it did not work. I guess this is because when I
make the request the one answering is Apache httpd and not Tomcat, and I don't think httpd
has any clue of what a status worker is.

Sure it has. It asks mod_jk and mod_jk knows all about worker statistics 
etc. and generates an HTML page.

> I tried to simplify it with just these 3 lines:
> worker.jkstatus.type=status
> worker.jkstatus.port=10002

host/port not needed (but doesn't harm either)

> So that it knows where to find Tomcat but still the same problem as with the other 2
previous configurations:
>         The requested URL /jkmanager was not found on this server.

Do you have any virtual hosts? If so, you need to put the JkMountFile 
into the virtual host, which handles your /jkmanager request.

If it doesn't work at all, set JkLogLevel to debug, restart httpd and 
send a single request for /jkmanager. After that, post the contents of 
the JkLogFile.



> -----Original Message-----
> From: Rainer Jung []
> Sent: terça-feira, 1 de Abril de 2008 13:20
> To: Tomcat Users List
> Subject: Re: status worker
> Nuno Manuel Martins wrote:
>> Hello,
>> I am new to tomcat in general and I am trying to setup jk_mod (using 1.2.25) and
I have already successfully installed it and put workers serving dynamic content from the
tomcat server with load balancing.
>> Now I wanted to setup the status worker to get some statistics. I am using the default
configuration for it but probably something basic is missing:
>> file:
>> worker.list=lb1 , lb2 , jkstatus
>> [...]
>> jkstatus.port=10001
>> jkstatus.username=manager
>> jkstatus.password=tomcat
>> jkstatus.url=http://${}:${jkstatus.port}/jkstatus
>> jkstatus.testlb=lb1
>> jkstatus.testworker=worker42
>> file:
>> /jkmanager=jkstatus
>> Apache httpd.conf file:
>> JkWorkersFile /usr/local/apache2/conf/
>> JkMountFile /usr/local/apache2/conf/
>> Include /usr/local/apache2/conf/tomcat-55.conf
>> Include /usr/local/apache2/conf/tomcat-50.conf
>> Apache httpd is on host rh01 and Tomcat server is on host rh02. When I try to access
http://rh01/jkmanager it just says it can't find the document... can someone say what am I
missing? The documentation doesn't provide much troubleshoot :(
>> Regards,
>> Nuno
> Correct your
> Remove all of the above lines of the form
> jkstatus.attribute=value
> because none of the attributes you are using makes much sense.
> Add:
> worker.jkstatus.type=status
> to let mod_jk know, when it tries to send a request to the worker with
> name jkstatus, that there is not host/port/Tomcat behind it, but instead
> it should generate its own status page.
> If it works, then you should add an authentication/authorization
> mechanism inside httpd to the URL /jkmanager (e.g. a Location directive
> and inside a required user/password; this can be done with usual httpd
> procedures, nothing mod_jk specific).
> Regards,
> Rainer

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