Re: can the mount directive be used for load balancers?

2008-05-08 Thread Stephanie Wullbieter
Thank You very much.
I can confirm that it works with balancers with mod_jk 1.2.18 too, allthough 
that is not as clearly documented as in the docs for the current mod_jk version.

 Original-Nachricht 
> Datum: Wed, 07 May 2008 20:20:34 +0200
> Von: Rainer Jung <[EMAIL PROTECTED]>
> An: Tomcat Users List 
> Betreff: Re: can the mount directive be used for load balancers?

> Stephanie Wullbieter wrote:
> > Hello,
> > 
> > can the mount directive be used for load balancing workers, too?
> > I found nothing about that in the docs. For example does this work:
> > 
> > worker.balancer.type=lb
> > worker.balancer.balanced_workers=worker1,worker2
> > worker.balancer.mount=/context
> 
> Yes, that's how it works. But this will only map the exact URL 
> "/context", not "/context/myservlet". So usually you also want to mount 
> "/context/*". The mount directive can be used multiple times.
> 
> If you use a load balancer worker, in fact you should mount via the 
> balancer and *not* via its member workers.
> 
> On the docs page
> 
> http://tomcat.apache.org/connectors-doc/reference/workers.html
> 
> in the table, where the "mount" attribute is explained, the seconds 
> columns says "AJP,LB", which means, you can use it for workers of type 
> LB (if you don't use an LB) or for LB workers. The missing "SUB" 
> indicates, that you should not use it for sub workers of an LB.
> 
> Using the mount atribute is not common. Most people either use a 
> uriworkermap.properties file (and JkMountFile in Apache httpd), or 
> directly JkMount in httpd. But those ways of defining mounts are 
> basically equivalent. JkMountFiles contents can be changed without web 
> server restart and JkMount directives in httpd.conf are a little closer 
> to the other context related httpd configuration items.
> 
> > 
> > Thank You
> 
> Regads,
> 
> Rainer
> 
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Re: can the mount directive be used for load balancers?

2008-05-07 Thread Rainer Jung

Stephanie Wullbieter wrote:

Hello,

can the mount directive be used for load balancing workers, too?
I found nothing about that in the docs. For example does this work:

worker.balancer.type=lb
worker.balancer.balanced_workers=worker1,worker2
worker.balancer.mount=/context


Yes, that's how it works. But this will only map the exact URL 
"/context", not "/context/myservlet". So usually you also want to mount 
"/context/*". The mount directive can be used multiple times.


If you use a load balancer worker, in fact you should mount via the 
balancer and *not* via its member workers.


On the docs page

http://tomcat.apache.org/connectors-doc/reference/workers.html

in the table, where the "mount" attribute is explained, the seconds 
columns says "AJP,LB", which means, you can use it for workers of type 
LB (if you don't use an LB) or for LB workers. The missing "SUB" 
indicates, that you should not use it for sub workers of an LB.


Using the mount atribute is not common. Most people either use a 
uriworkermap.properties file (and JkMountFile in Apache httpd), or 
directly JkMount in httpd. But those ways of defining mounts are 
basically equivalent. JkMountFiles contents can be changed without web 
server restart and JkMount directives in httpd.conf are a little closer 
to the other context related httpd configuration items.




Thank You


Regads,

Rainer

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can the mount directive be used for load balancers?

2008-05-07 Thread Stephanie Wullbieter
Hello,

can the mount directive be used for load balancing workers, too?
I found nothing about that in the docs. For example does this work:

worker.balancer.type=lb
worker.balancer.balanced_workers=worker1,worker2
worker.balancer.mount=/context

Thank You
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