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Load balancing a web service
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Load balancing a web service


  • Subject: Load balancing a web service
  • From: Fabio Invernizzi <email@hidden>
  • Date: Fri, 1 Oct 2004 16:15:13 +0200

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Hi all,

I'm having big problems in load balancing a web service. If I have just one instance of my web service everything is fine, with two the application which should use the web service is not able to connect to the correct instance.

The problem seems to lie in Axis and the way cookies are handled (http://nagoya.apache.org/jira/browse/AXIS-1080).

Since the web service need sessions, the instance ID and session ID are stored in cookies. Axis seems to remember only the last cookie thus making impossible to connect to the correct instance.

So, here comes my question:

- - - the bug has been patched but only for Axis 1.1, I've not found any reference to Axis 1.0
- - - WebObjects comes with Axis 1.0 and if I use Axis 1.1 I get exceptions (abstracts methods...) (tried it in Apple's Security Demo)
- - - Thus I must use Axis 1.0 but there seems to be no patch to it.


So: has anybody been able to use Load Balancing with session based web services ? Has Apple ever tested this ? Is there way to use Axis 1.1. with WO ?

Thanx in advance,

Regards from Italy,

F
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