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Re: WO Deployment [was:A WebObjects article on Appleinsider]
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Re: WO Deployment [was:A WebObjects article on Appleinsider]


  • Subject: Re: WO Deployment [was:A WebObjects article on Appleinsider]
  • From: Andrew Lindesay <email@hidden>
  • Date: Thu, 3 Sep 2009 19:49:53 +1200

Hi Ramsey;

I followed this thread earlier with great interest. Has anyone started any work toward this yet? I'd like to help if I can.

I did take a bit of a look into this.

I like the idea of moving to a servlet container bundle. I am not sure what would be required for this to work.
...
I like the idea too. It would be nice if we could make wo apps work as well on other java app servers as they do on the monitor/wotaskd combo.

I agree -- I think some of the benefits are quite significant if the implementation is good.


The other issue is dynamic reconfiguration. Adding an instance require editing the apache config file and restarting apache. We need to add to the mod_proxybalancer a mechanism to dynamically load the configuration,

I looked at the Apache 2.2 source; there seems to be an XML format for outputting the state of the balancer, but no means by which this can be read-in other than by using the "balancer manager" (c/w "mod_status") as a human operator on a browser. The code for balancer- manager is a good place to start with regard to dynamically modifying the balancers. To add applications, I presume one would need to dynamically re-configure Apache's "Location" etc... somehow and ran out of time to try and understand that part of it.


I am thinking of a slightly different approach now, but haven't had a chance yet to nut it all out.

cheers.

___
Andrew Lindesay
www.lindesay.co.nz

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References: 
 >Re: WO Deployment [was:A WebObjects article on Appleinsider] (From: Ramsey Lee Gurley <email@hidden>)

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