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From Bernd Koecke ...@schlund.de>
Subject Re: tomcat 4.0.3 + mod_jk
Date Fri, 22 Mar 2002 08:51:48 GMT
GOMEZ Henri wrote:
>>>>yes, I know. But when I come in without a session the function 
>>>>get_most_suitable_worker in jk_lb_worker.c will find a 
>>>
>>worker by using 
>>
>>>>the lb-factor and do weighted round robin. And at this 
>>>
>>position I would 
>>
>>>>like to switch off the load-balancing and select the worker which is 
>>>>connected to tomcat on the same node. 
>>>
> 
> let's resume :
> 
> you have a tandem apache/tomcat by machine.
> apache could use also others tomcat from a LB farm.
> 
> when you've got no session you want to use the local tomcat 
> instead of one grabbed from lb farm. 
> 
> so you propose to add a 'DEFAULT' worker in LB which will bypass
> the LB settings when no session is present ?
> 

Yes. Costin suggested to use a special lb-factor. I would use -1 for the 
lb-factor. But this wouldn't solve the problem if someone set more than 
one worker to this value. To use a new config tag for optionally setting 
a default worker would be a cleaner way. And it would be easier to 
handle a connection error while connecting to the local tomcat in the 
service method. Because if my local tomcat has problems I could fallback 
to the normal selection of a worker by lb-factors.

Bernd
-- 
Dipl.-Inform. Bernd Koecke
UNIX-Entwicklung
Schlund+Partner AG
Fon: +49-721-91374-0
E-Mail: bk@schlund.de


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