repository/conf/sample/synapse_sample_59.xml

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<!-- Demontrates the session affinity load balancing between fail over endpoints. If endpoint servers
maintain session specific data, such data have to replicated among the failover endpoints. -->
<definitions xmlns="http://ws.apache.org/ns/synapse">

    <sequence name="main" onError="errorHandler">
        <in>
            <send>
                <endpoint>

                    <!-- bind to HTTP sessions based on HTTP cookies -->
                    <session type="http"/>

                    <loadbalance>
                        <endpoint>
                            <failover>
                                <endpoint>
                                    <address uri="http://localhost:9001/soap/LBService2">
                                        <enableAddressing/>
                                    </address>
                                </endpoint>
                                <endpoint>
                                    <address uri="http://localhost:9002/soap/LBService2">
                                        <enableAddressing/>
                                    </address>
                                </endpoint>
                            </failover>
                        </endpoint>
                        <endpoint>
                            <failover>
                                <endpoint>
                                    <address uri="http://localhost:9003/soap/LBService2">
                                        <enableAddressing/>
                                    </address>
                                </endpoint>
                                <endpoint>
                                    <address uri="http://localhost:9004/soap/LBService2">
                                        <enableAddressing/>
                                    </address>
                                </endpoint>
                            </failover>
                        </endpoint>
                    </loadbalance>
                </endpoint>
            </send>
        </in>

        <out>
            <!-- Send the messages where they have been sent (i.e. implicit To EPR) -->
            <send/>
        </out>
    </sequence>

    <sequence name="errorHandler">

        <makefault>
            <code value="tns:Receiver" xmlns:tns="http://www.w3.org/2003/05/soap-envelope"/>
            <reason value="COULDN'T SEND THE MESSAGE TO THE SERVER."/>
        </makefault>

        <header name="To" action="remove"/>
        <property name="RESPONSE" value="true"/>

        <send/>
    </sequence>

</definitions>