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From Orion Letizi <>
Subject Re: Terracotta Clustering plugin...
Date Thu, 14 Jun 2007 23:45:57 GMT

So, I think an HTTP session clustering plugin would be the most likely first

As I see it, we need the plugin to:

* grab the terracotta bits.  I'm not exactly sure how this will get done,
since the Terracotta bits aren't currently packaged up for automated
download (although, it looks like we'll be adding that soon)

* configure Geronimo to use Terracotta HTTP session clustering.  Currently,
this is done by adding java vm parameters... not sure how that will work
with the hot-install plugin feature of Geronimo.

* maybe provide some mechanism for configuring terracotta for your
application and/or starting the terracotta server (although, this seems like
a nice to have that could be worked out later).

Does this sound reasonable?

I rummaged around for a little while to see if I could find docs on how to
build a plugin (other than using the neat plugin generator feature in the
Geronimo console), but didn't really find anything immediately.  Can someone
give me a place to start looking?

The EJB-clustering prototype stuff that Jeff Genender and Tim Eck worked on
seems like something we could work on in parallel, but the horizon for that
might be a little farther out.

Matt Hogstrom wrote:
> Crawling is good before running.  Sounds excellent.
> On Jun 1, 2007, at 4:42 PM, sharrissf wrote:
>> First cut will almost certainly be for session clustering. We have  
>> a whole
>> list of other stuff
>> that we want to do but we want to get our feet wet first.
>> jgenender wrote:
>>> I think there would be HUGE interest in this....
>>> We probably should come up with what needs to be done to do this.
>>> Are you looking to start with the web tier and get a plugin working?
>>> Jeff
>>> sharrissf wrote:
>>>> Hello,
>>>> for those who aren't familiar with Terracotta it is a java  
>>>> clustering
>>>> product that we integrated with Geronimo some time ago. What we  
>>>> would
>>>> like
>>>> to do now is create a plugin to enable quick installation and
>>>> configuration.
>>>> I was curious what kind of interest existed out there for such a  
>>>> plugin.
>>>> Cheers,
>>>> Steve
>> -- 
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>> Clustering-plugin...-tf3854120s134.html#a10920190
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