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Posted to users@httpd.apache.org by aparna aryan <ap...@gmail.com> on 2011/03/14 15:59:57 UTC

[users@httpd] Load balancing proxy pass and reverse proxy pass

Hello,

Our application is running with a apache webserver and 2 instances of
weblogic server.

localhost1- weblogic
localhost2 - weblogic

Now we are trying to replace localhost2 with tomcat and do clustering.

The following configuration was with out clustering :

We have the following configuration :

Load balancing for localhost1 was done here.

 <Proxy balancer://cluster>
         BalancerMember ajp://localhost1:port/xxx route=server_1
loadfactor=33 retry=60
         BalancerMember ajp://localhost1:port/xxx route=server_2
loadfactor=33 retry=60
         BalancerMember ajp://localhost1:port/xxx route=server_3
loadfactor=33 retry=60
         BalancerMember ajp://localhost1:port/xxx route=server_4
loadfactor=33 retry=60
         BalancerMember ajp://localhost1:port/xxx route=server_5
loadfactor=33 retry=60

         #load balancing performed based on number of user requests
         ProxySet lbmethod=byrequests
         # Report server is for Report purpose only so balancing is required
now.
          </Proxy>

requests to localhost2 are forwarded only when user requests for certain
functionality after logging in to localhost1. i.e..when a user hits the dns,
the request is forwarded to one of the localhost1s that are clustered and
from there when the user is trying to access certain pages, The request will
be redirected to localhost2s via proxy pass settings that are set as
following :

 ProxyPass /xxx/xxx//viewGenericReport.jsp http://localhost2:xxx
/eMatrix/jsp/mars/general/genericReport/viewGenericReport.
jsp
            ProxyPassReverse
/eMatrix/jsp/mars/general/genericReport/viewGenericReport.jsp
http://localhost2:xxx/viewGenericReport.jsp
            ProxyPass
/eMatrix/jsp/mars/general/genericReport/viewGenericReportnogzip.jsp
http://localhost2:xxx/eMatrix/jsp/viewGenericReportnogzip.jsp
            ProxyPassReverse
/eMatrix/jsp/mars/general/genericReport/viewGenericReportnogzip.jsp
http://localhost2:xxx/viewGenericReportnogzip.jsp
            ProxyPass //hybridReport/ http://localhost2:xxx//hybridReport
        ProxyPassReverse /hybridReport/ http://localhost2:xxx/hybridReport/
        ProxyPass /CRReport.jsp http://localhost2:xxx/CRReport.jsp
        ProxyPassReverse /CRReport.jsp http://localhost2:xxx//CRReport.jsp
        ProxyPass /crProcessForwardReport.jsp http://localhost2:xxx
/crProcessForwardReport.jsp
        ProxyPassReverse /crProcessForwardReport.jsp http://localhost2:xxx
/crProcessForwardReport.jsp
        ProxyPass /iaProcessForwardReport.jsp http://localhost2:xxx
/iaProcessForwardReport.jsp
        ProxyPassReverse /iaProcessForwardReport.jsp http://localhost2:xxx
//iaProcessForwardReport.jsp


Please let us know how to load balance localhost2s....

Re: [users@httpd] Load balancing proxy pass and reverse proxy pass

Posted by Tom Evans <te...@googlemail.com>.

On Mon, Mar 14, 2011 at 2:59 PM, aparna aryan <ap...@gmail.com> wrote:
> Hello,
>
> Our application is running with a apache webserver and 2 instances of
> weblogic server.
>
> localhost1- weblogic
> localhost2 - weblogic
>
> Now we are trying to replace localhost2 with tomcat and do clustering.
>
> The following configuration was with out clustering :
>
> We have the following configuration :
>
> Load balancing for localhost1 was done here.
>
>  <Proxy balancer://cluster>
>          BalancerMember ajp://localhost1:port/xxx route=server_1
> loadfactor=33 retry=60
>          BalancerMember ajp://localhost1:port/xxx route=server_2
> loadfactor=33 retry=60
>          BalancerMember ajp://localhost1:port/xxx route=server_3
> loadfactor=33 retry=60
>          BalancerMember ajp://localhost1:port/xxx route=server_4
> loadfactor=33 retry=60
>          BalancerMember ajp://localhost1:port/xxx route=server_5
> loadfactor=33 retry=60
>
>          #load balancing performed based on number of user requests
>          ProxySet lbmethod=byrequests
>          # Report server is for Report purpose only so balancing is required
> now.
>           </Proxy>
>
> requests to localhost2 are forwarded only when user requests for certain
> functionality after logging in to localhost1. i.e..when a user hits the dns,
> the request is forwarded to one of the localhost1s that are clustered and
> from there when the user is trying to access certain pages, The request will
> be redirected to localhost2s via proxy pass settings that are set as
> following :
>
>  ProxyPass /xxx/xxx//viewGenericReport.jsp
> http://localhost2:xxx/eMatrix/jsp/mars/general/genericReport/viewGenericReport.
> jsp
>             ProxyPassReverse
> /eMatrix/jsp/mars/general/genericReport/viewGenericReport.jsp
> http://localhost2:xxx/viewGenericReport.jsp
>             ProxyPass
> /eMatrix/jsp/mars/general/genericReport/viewGenericReportnogzip.jsp
> http://localhost2:xxx/eMatrix/jsp/viewGenericReportnogzip.jsp
>             ProxyPassReverse
> /eMatrix/jsp/mars/general/genericReport/viewGenericReportnogzip.jsp
> http://localhost2:xxx/viewGenericReportnogzip.jsp
>             ProxyPass //hybridReport/ http://localhost2:xxx//hybridReport
>         ProxyPassReverse /hybridReport/ http://localhost2:xxx/hybridReport/
>         ProxyPass /CRReport.jsp http://localhost2:xxx/CRReport.jsp
>         ProxyPassReverse /CRReport.jsp http://localhost2:xxx//CRReport.jsp
>         ProxyPass /crProcessForwardReport.jsp
> http://localhost2:xxx/crProcessForwardReport.jsp
>         ProxyPassReverse /crProcessForwardReport.jsp
> http://localhost2:xxx/crProcessForwardReport.jsp
>         ProxyPass /iaProcessForwardReport.jsp
> http://localhost2:xxx/iaProcessForwardReport.jsp
>         ProxyPassReverse /iaProcessForwardReport.jsp
> http://localhost2:xxx//iaProcessForwardReport.jsp
>
>
> Please let us know how to load balance localhost2s....
>
>

You do it exactly the same as you did for localhost1 (awful names btw!).

1) Define a <Proxy balancer://foo> cluster
2) Adjust your ProxyPass rules to refer to this cluster instead of a
named backend.

Eg:

<Proxy balancer://backend2>
...
</Proxy>

ProxyPass /iaProcessForwardReport.jsp
balancer://backend2/iaProcessForwardReport.jsp

etc

Cheers

Tom

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