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From GIORGI Olivier <Olivier.GIO...@3ds.com>
Subject RE: Load balancing & session affinity (QUERY)
Date Thu, 26 Apr 2012 18:25:12 GMT
Hello Derek,

Thank you for your fruitfull answer.

It works.

Best regards Olivier.

-----Original Message-----
From: Derek Beauregard [mailto:dbeauregard@vmware.com]
Sent: Thursday, April 26, 2012 5:59 PM
To: Tomcat Users List
Subject: Re: Load balancing & session affinity (QUERY)

Have you defined the jvmRoute on your Engine element in tomcat's
server.xml?

E.g., <Engine name="catalina" jvmRoute="host1"Š>

The value for jvmRoute should match the route defined in your apache
balancer config.

-Derek

Derek Beauregard



On 4/26/12 9:37 AM, "GIORGI Olivier" <Olivier.GIORGI@3ds.com> wrote:

>Hello to all,
>
>I am using Apache 2.2.21 & Tomcat 6.0.29
>
>1) Schema: Load balancer (Apache.2.2.21) -> 1st appli (Tomcat 6.0.29)
>-> 2nd appli. (Tomcat 6.0.29)
>
>2) Using the following configuration, my load balancing is stateless
>instead of statefull (having a look at the logs).
>--------------------------------------------------------------------------
>--------------------------------------------------------------------------
>---------
>ProxyRequests Off
><Proxy *>
>Order deny,allow
>Allow from all
></Proxy>
><IfModule log_config_module>
>LogFormat "%h %l %u %t \"%r\" %>s %b \"%{UNIQUE_ID}e\"
>\"%{BALANCER_WORKER_ROUTE}e\"" logjyc
>CustomLog logs/jyc_log logjyc
></IfModule>
>ProxyPass /MCSRootURI balancer://MCSCluster stickysession=JSESSIONID
>nofailover=Off
><Proxy balancer://MCSCluster >
>BalancerMember http://workstation1:MCSPort1/MCSRootURI route=host1
>BalancerMember http://MCSServer2:MCSPort2/MCSRootURI route=host2
></Proxy>
>ProxyPassReverse /MCSRootURI http://MCSServer1:MCSPort1/MCSRootURI
>ProxyPassReverse /MCSRootURI http://MCSServer2:MCSPort2/MCSRootURI
>--------------------------------------------------------------------------
>--------------------------------------------------------------------------
>---------
>
>3) Query
>=> What have i missed on Apache or Tomcat side to get JSESSIONID taken
>into account then have a statefull load balancing ?
>
>4) Bypass: using the following configuration my load balancing is this
>time statefull (having a look at the logs).
>--------------------------------------------------------------------------
>--------------------------------------------------------------------------
>---------
>ProxyRequests Off
><Proxy *>
>Order deny,allow
>Allow from all
></Proxy>
><IfModule log_config_module>
>LogFormat "%h %l %u %t \"%r\" %>s %b \"%{UNIQUE_ID}e\"
>\"%{BALANCER_WORKER_ROUTE}e\"" logjyc
>CustomLog logs/jyc_log logjyc
></IfModule>
>SetEnvIf ^Cookie$ "MYCOOKIE=([^ ;]*)" VARCOOKIE=$1
>Header add Set-Cookie "MYCOOKIE=%{UNIQUE_ID}e.%{BALANCER_WORKER_ROUTE}e;
>path=/" env=!VARCOOKIE
>ProxyPass /MCSRootURI balancer://MCSCluster stickysession=MYCOOKIE
>nofailover=Off
><Proxy balancer://MCSCluster >
>BalancerMember http://MCSServer1:MCSPort1/MCSRootURI route=host1
>BalancerMember http://MCSServer2:MCSPort2/MCSRootURI route=host2
></Proxy>
>ProxyPassReverse /MCSRootURI http://MCSServer1:MCSPort1/MCSRootURI
>ProxyPassReverse /MCSRootURI http://MCSServer2:MCSPort2/MCSRootURI
>--------------------------------------------------------------------------
>--------------------------------------------------------------------------
>---------
>
>Thanks in advance for your help.
>Best regards Olivier.
>
>
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