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Re: Multiple instances of EOModel in an application.
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Re: Multiple instances of EOModel in an application.


  • Subject: Re: Multiple instances of EOModel in an application.
  • From: Marek Wawrzyczny <email@hidden>
  • Date: Thu, 24 Jun 2004 17:58:08 +1000

Yeah, this is the alternative. We're likely to go this way as it's by far the easiest to implement.

However until recently the app was consuming quite a lot of memory under stress. While I think we have managed to get this under control now, it still means multiple invocations of the JVM, etc... With several instances, we're looking at having to add more RAM to the servers.

Still it was interesting to see if anyone has tried (mis)using EOF in this way...

On 24/06/2004, at 17:31, Geoff Hopson wrote:

What about having several instances of the same application, each instance configured via startup parameters to connect to a different database, and do some url rewrite jiggery pokery to redirect the request to the correct instance?

Depends how many databases you have and how much hardware you can throw at it, I guess...

Geoff

On 24 Jun 2004, at 07:22, Art Isbell wrote:

On Jun 23, 2004, at 6:14 PM, Marek Wawrzyczny wrote:

Has anyone tried to concurrently use many instances of the same EOModel, linked to different databases in a single application?
We are evaluating this possibility. We have several identical databases which we'd hope to update using WebServices through a single WO app. All EOs have the same business logic. This app would ideally choose the right data source depending on the login info. As far as I can tell this is only possible if the none of the EO share the same entity name.

Marek Wawrzyczny

software engineer
-------------------------->
ish group pty ltd
http://www.ish.com.au
7 Darghan St Glebe 2037 Australia
phone +61 2 9660 1400   fax +61 2 9660 7400
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References: 
 >Multiple instances of EOModel in an application. (From: Marek Wawrzyczny <email@hidden>)
 >Re: Multiple instances of EOModel in an application. (From: Art Isbell <email@hidden>)
 >Re: Multiple instances of EOModel in an application. (From: Geoff Hopson <email@hidden>)

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