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Posted to users@tomcat.apache.org by Farid Izem <fa...@gmail.com> on 2006/02/15 15:04:01 UTC
Apache / mod_jk / Multiples instances of Tomcat
Hi all,
I'm currently trying to build a Apache load balancings against multiples
instances of Tomcat.
On my host, i have three instances of Tomcat (ie using CATALINA_BASE
variable), each listening on differents ports for AJP Connector.
On the same server, i have an Apache using Mod_jk.
Is it possible to configure load balancing across the three instances of
Tomcat using mod_jk ?
Morever, in the worker.properties, i don't known how to configure
worker.tomcat_home as it is different for each instance of Tomcat ?
Any help would be appreciate, Any Internet Links ..
Kind Regards,
Farid
Re: Apache / mod_jk / Multiples instances of Tomcat
Posted by Farid Izem <fa...@gmail.com>.
Hi David,
Thanks for you help. This was exactly what i hace done.
But, the main problem was located on the tomcat servers.
As it was not me who install the tomcat servers, we find that
All the webapps were corrupt due to a file transfer.
Now, all work properly.
Many thanks,
Farid.
On 2/15/06, David Avenante <d....@gmail.com> wrote:
>
> You can see this URL http://www.paulkimbrel.com/?p=3
>
> my configuration for me with one apache in front on two tomcat (for my
> tests)
> is :
>
> after install mod_jk of course ;)
>
> httpd.conf :
> # Load mod_jk module
> LoadModule jk_module modules/mod_jk.so
> JkWorkersFile /etc/apache2/workers.properties
> JkLogFile /var/log/apache2/mod_jk.log
> JkLogLevel ERROR
> JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
> JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
> JkRequestLogFormat "%w %V %T"
> JkMount /cluster-1.0-SNAPSHOT/app* loadbalancer
>
> workers.properties :
>
> # workers.properties
>
> ps=/
>
> # List the workers name
> worker.list=loadbalancer
> # ----------------
> # First worker
> # ----------------
> worker.node01.port=8009
> worker.node01.host=agnes
> worker.node01.type=ajp13
> worker.node01.lbfactor=1
> worker.node01.domain=cluster1
> # ----------------
> # Second worker
> # ----------------
> worker.node02.port=9009
> worker.node02.host=ovea-inspiron
> worker.node02.type=ajp13
> worker.node02.lbfactor=1
> worker.node02.domain=cluster1
> # ----------------------
> # Load Balancer worker
> # ----------------------
> worker.loadbalancer.type=lb
> worker.loadbalancer.sticky_session=true
> worker.loadbalancer.balanced_workers=node01,node02
>
> as you can see in the list of worker only the loadbalancer worker is
> present.
> Be carreful in your server.xml to add jvmRoute with same name of worker.
>
> <Engine name="Catalina" defaultHost="localhost" jvmRoute="node01" ...
>
>
>
> On 2/15/06, Farid Izem <fa...@gmail.com> wrote:
> >
> > Hi all,
> >
> > I'm currently trying to build a Apache load balancings against multiples
> > instances of Tomcat.
> >
> > On my host, i have three instances of Tomcat (ie using CATALINA_BASE
> > variable), each listening on differents ports for AJP Connector.
> > On the same server, i have an Apache using Mod_jk.
> >
> > Is it possible to configure load balancing across the three instances of
> > Tomcat using mod_jk ?
> >
> > Morever, in the worker.properties, i don't known how to configure
> > worker.tomcat_home as it is different for each instance of Tomcat ?
> >
> > Any help would be appreciate, Any Internet Links ..
> >
> > Kind Regards,
> >
> > Farid
> >
> >
>
>
Re: Apache / mod_jk / Multiples instances of Tomcat
Posted by David Avenante <d....@gmail.com>.
You can see this URL http://www.paulkimbrel.com/?p=3
my configuration for me with one apache in front on two tomcat (for my
tests)
is :
after install mod_jk of course ;)
httpd.conf :
# Load mod_jk module
LoadModule jk_module modules/mod_jk.so
JkWorkersFile /etc/apache2/workers.properties
JkLogFile /var/log/apache2/mod_jk.log
JkLogLevel ERROR
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
JkRequestLogFormat "%w %V %T"
JkMount /cluster-1.0-SNAPSHOT/app* loadbalancer
workers.properties :
# workers.properties
ps=/
# List the workers name
worker.list=loadbalancer
# ----------------
# First worker
# ----------------
worker.node01.port=8009
worker.node01.host=agnes
worker.node01.type=ajp13
worker.node01.lbfactor=1
worker.node01.domain=cluster1
# ----------------
# Second worker
# ----------------
worker.node02.port=9009
worker.node02.host=ovea-inspiron
worker.node02.type=ajp13
worker.node02.lbfactor=1
worker.node02.domain=cluster1
# ----------------------
# Load Balancer worker
# ----------------------
worker.loadbalancer.type=lb
worker.loadbalancer.sticky_session=true
worker.loadbalancer.balanced_workers=node01,node02
as you can see in the list of worker only the loadbalancer worker is
present.
Be carreful in your server.xml to add jvmRoute with same name of worker.
<Engine name="Catalina" defaultHost="localhost" jvmRoute="node01" ...
On 2/15/06, Farid Izem <fa...@gmail.com> wrote:
>
> Hi all,
>
> I'm currently trying to build a Apache load balancings against multiples
> instances of Tomcat.
>
> On my host, i have three instances of Tomcat (ie using CATALINA_BASE
> variable), each listening on differents ports for AJP Connector.
> On the same server, i have an Apache using Mod_jk.
>
> Is it possible to configure load balancing across the three instances of
> Tomcat using mod_jk ?
>
> Morever, in the worker.properties, i don't known how to configure
> worker.tomcat_home as it is different for each instance of Tomcat ?
>
> Any help would be appreciate, Any Internet Links ..
>
> Kind Regards,
>
> Farid
>
>