While testing my load balancer implementation, I killed an application node
just to see what happens. Apparently, the load balancer tries to forward the
request to the failed node and detects that this node has failed. However,
the Axis2 client that invoked synapse does not get a response, and simply
times out. Looks like the error handler sequence is not getting invoked. The
relevant configuration section looks like this:
----------------------------------------------------------------------------------------------------------------------------------------------
<sequence name="main" onError="errorHandler">
<in>
<send>
<endpoint>
<intelligentLoadbalance/>
</endpoint>
</send>
<!--drop/-->
</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>
---------------------------------------------------------------------------------------------------------------------------------------------
At the end of the log, I'm seeing the following printed:
INFO LogMediator To: http://10.100.1.52:9763/wsas/services/Calculator,
WSAction: urn:add, SOAPAction: urn:add, MessageID:
urn:uuid:08B30E45863D8110F81213252716695, Direction: request, MESSAGE =
Executing default "fault" sequence, ERROR_CODE = 00000, ERROR_MESSAGE =
java.net.ConnectException: Connection refused, Envelope: <?xml version='1.0'
encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="
http://www.w3.org/2003/05/soap-envelope";><soapenv:Body><ns1:add xmlns:ns1="
http://clustering.wso2.org
"><ns1:a>13226</ns1:a><ns1:b>5665</ns1:b><ns1:context>ConfigurationContext</ns1:context></ns1:add></soapenv:Body></soapenv:Envelope>
Any idea what can be wrong? Is there an error in the synapse configuration
I've provided?
--
Thanks
Afkham Azeez
http://afkham.org
http://www.wso2.org
GPG Fingerprint: 643F C2AF EB78 F886 40C9 B2A2 4AE2 C887 665E 0760
