Hello,

I use Fuse ESB 4.2.0

I would like to test LoadBalancing by Bus on http services.

First of all I test the service without load balancing :

My camel route is :

-

from("jetty:http://localhost:998/hello")

  .setExchangePattern(ExchangePattern.InOut)

  .setHeader(Exchange.HTTP_URI , constant("http://localhost:9198"))

  .to("http://localhost:9198/hello");

-

As Camel specified in documentation, I used setHeader(Exchange.HTTP_URI ,...) to set up the HTTP_URI in header of exchange. (Without I have exception host parameter is null).

This route work perfectly.

I would like to load balance on two services :

The camel route I defined is :

-

from("jetty:http://localhost:998/hello")

     .setExchangePattern(ExchangePattern.InOut)

     .loadBalance()

     .roundRobin()

     .to(new String[]{"http://localhost:9198/hello","http://localhost:9298/hello"});

-

But I can't define HTTP_URI to one or the other URI because it should be loadbalanced.

In this case I have the exception :

-

java.lang.IllegalArgumentException: host parameter is null

     at org.apache.commons.httpclient.HttpConnection.(MultiThreadedHttpConnectionManager.java:1145)

     at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$ConnectionPool.createConnection(MultiThreadedHttpConnectionManager.java:762)

     at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager.doGetConnection(MultiThreadedHttpConnectionManager.java:476)

     at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager.getConnectionWithTimeout(MultiThreadedHttpConnectionManager.java:416)

-

How can I load balance on two http service outside of the bus ?

Thanks In advance.

Edited by: jcs on Apr 27, 2010 12:18 PM