[esb-java-user] Session affinity load balancing proxy problem

[王朋义]

Hi all,

I try Sample 54: Session affinity load balancing between 3
endpoints<http://wso2.org/project/esb/java/4.0.3/docs/samples/endpoint_mediation_samples.html#Sample54>,
and it works perfectly.

I need change it to a proxy, which set the soap header(ClientID)
according to the input message.

So I set up a proxy below:

* <?xml version="1.0" encoding="UTF-8"?>*

*<proxy xmlns="http://ws.apache.org/ns/synapse" name="LBSTest"
transports="http" startOnLoad="true" trace="disable">*

* <target>*

* <inSequence>*

* <log level="custom">*

* <property xmlns:ser="http://services.samples"
name="userId" expression="//ser:sampleOperation/ser:param"/>*

* </log>*

* <header xmlns:syn="http://ws.apache.org/ns/synapse" xmlns:ser="
http://services.samples" name="syn:ClientID"
expression="//ser:sampleOperation/ser:param"/>*

* <log level="full"/>*

* <send>*

* <endpoint>*

* <loadbalance
algorithm="org.apache.synapse.endpoints.algorithms.RoundRobin">*

* <endpoint>*

* <address uri="
http://localhost:9001/services/LBService1">*

* <enableAddressing/>*

* </address>*

* </endpoint>*

* <endpoint>*

* <address uri="
http://localhost:9002/services/LBService1">*

* <enableAddressing/>*

* </address>*

* </endpoint>*

* </loadbalance>*

* <session type="simpleClientSession">*

* <sessionTimeout>0</sessionTimeout>*

* </session>*

* </endpoint>*

* </send>*

* <drop/>*

* </inSequence>*

* <outSequence>*

* <send/>*

* </outSequence>*

* </target>*

*</proxy>*

The LoadbalanceFailoverService is not changed, and I use the value of
the *//ser:sampleOperation/ser:param
*as a ClinetID. I send a message Using soapUI, and the ESB log is below:

*[2012-01-04 15:37:35,875] INFO - LogMediator To: /services/LBSTest,
WSAction: u*

*rn:sampleOperation, SOAPAction: urn:sampleOperation, MessageID:
urn:uuid:ab4ae41*

*a-463b-4b6f-b4d3-3cac072d76e6, Direction: request, Envelope: <?xml
version='1.0'*

* encoding='utf-8'?><soap:Envelope xmlns:soap="
http://www.w3.org/2003/05/soap-env*

*elope" xmlns:ser="http://services.samples"><soap:Header><syn:ClientID
xmlns:syn=*

*"http://ws.apache.org/ns/synapse
">c1</syn:ClientID></soap:Header><soap:Body>*

* <ser:sampleOperation>*

* <!--Optional:-->*

* <ser:param>c1</ser:param>*

* </ser:sampleOperation>*

* </soap:Body></soap:Envelope>*
*
*

But it seems doesn't work, The first C1 message is sent to MyServer1, and
the second C1 message is sent to MyServer2.

Any suggestion?
Thanks!

Rocwing

*
*