[esb-java-user] Loadbalancing with clusteraware stickiness (session affinity)

[Afkham Azeez]

Have you taken a look at at 
http://wso2.org/project/wsas/java/2.2.1/docs/wsas-clustering.html?

Azeez

Hubert, Eric wrote:
> Hi all,
> 
> today we tried a simple test regarding load balancing with clusteraware
> stickiness (session affinity) which did not work (this is related to
> JIRA https://wso2.org/jira/browse/ESBJAVA-439).
> 
> Before I try to reopen that JIRA or create a new one linked to that, I
> would like to ask a few questions about clustering configuration. Where
> can I find information about how to properly configure clustering.
> 
> I found nothing in the WSO2-land, only a page within the Axis2
> documentation, which seems to fit but does not explain the details:
> http://ws.apache.org/axis2/1_3/clustering-guide.html#stateful%20Web%20Se
> rvices
> 
> What shall I do to activate clustering support for WSO2 ESB? Is it
> sufficient to uncomment the configuration section about clustering in
> Axis2.xml of all nodes? This is what we actually did.
> 
> How does clustering work internally? I could not see any multicast
> configuration or something like that. 
> 
> According to the comments in the JIRA our configuration should work, as
> we use named endpoints. Please find attached our synapse configuration
> file.
> 
> If we don't miss any configuration step, I will open a new JIRA issue.
> Please let me know how to proceed with this!
> 
> Regards,
>    Eric
> 
> 
> 
> 
> 
> ------------------------------------------------------------------------
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <syn:definitions xmlns:syn="http://ws.apache.org/ns/synapse">
>     <syn:registry provider="org.wso2.esb.registry.ESBRegistry">
>         <syn:parameter name="root">file:registry/</syn:parameter>
>         <syn:parameter name="cachableDuration">15000</syn:parameter>
>     </syn:registry>
>     <syn:proxy name="LocalLoadBalance" startOnLoad="true">
>         <syn:target inSequence="main" outSequence="main"/>
>     </syn:proxy>
>     <syn:endpoint name="HelloWS_THIRD">
>         <syn:address uri="http://10.35.29.213:9001/WSTEST3/HelloWorldService"/>
>     </syn:endpoint>
>     <syn:endpoint name="HelloWS_FIRST">
>         <syn:address uri="http://10.35.29.213:9001/WSTest/HelloWorldService" statistics="enable"/>
>     </syn:endpoint>
>     <syn:endpoint name="HelloWS_SECOND">
>         <syn:address uri="http://10.35.29.213:9001/WSTEST2/HelloWorldService"/>
>     </syn:endpoint>
>     <syn:sequence name="main" onError="errorHandler">
>         <syn:in>
>             <syn:send>
>                 <syn:endpoint name="root">
>                     <syn:loadbalance policy="roundRobin">
>                         <syn:endpoint key="HelloWS_FIRST"/>
>                         <syn:endpoint key="HelloWS_SECOND"/>
>                         <syn:endpoint key="HelloWS_THIRD"/>
>                     </syn:loadbalance>
>                 </syn:endpoint>
>             </syn:send>
>             <syn:drop/>
>         </syn:in>
>         <syn:out>
>             <syn:send/>
>         </syn:out>
>     </syn:sequence>
>     <syn:sequence name="fault">
>         <syn:log level="full">
>             <syn:property name="MESSAGE" value="Executing default &quot;fault&quot; sequence"/>
>             <syn:property name="ERROR_CODE" expression="get-property('ERROR_CODE')"/>
>             <syn:property name="ERROR_MESSAGE" expression="get-property('ERROR_MESSAGE')"/>
>         </syn:log>
>         <syn:drop/>
>     </syn:sequence>
>     <syn:sequence name="errorHandler">
>         <syn:makefault>
>             <syn:code xmlns:tns="http://www.w3.org/2003/05/soap-envelope" value="tns:Receiver"/>
>             <syn:reason value="COULDN'T SEND THE MESSAGE TO THE SERVER."/>
>         </syn:makefault>
>         <syn:header name="To" action="remove"/>
>         <syn:property name="RESPONSE" value="true"/>
>         <syn:send/>
>     </syn:sequence>
> </syn:definitions>
> 
> 
> ------------------------------------------------------------------------
> 
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