RE: [Jpolycache-users] Status?

[Aaron S. <AS...@th...>]

I'm glad you are interested.  

There really is no viable distributed caching system provided by any app
server, except maybe Oracle9i.  

I'm running another version of this in production and it is working great,
but I've tried to add several features and have pretty much redone the
entire thing. 

I'm almost done with remote cache clustering.  Once I finish, this will be a
far better system than Oracle's.  

If you put the main cache folder in c:\dev\ the tester code should be fine.

I haven't updated the files in a few weeks.  This last week I haven't had
much time to work on it, but I should be able to get clustering done
shortly.

I need to write some documents on how it works.  I'll make some examples.

I'll definitely need some help.  First I need to finish the clustering, just
a few little things and then I need to take a few methods out of the access
interface and speed up the attribute setting in the element attribute class.
Then we need to do more performace tuning.  Also, it would be nice to have a
versioning feature, where an element's version number could be used to add
another layer of protection against out of sych data problems.

The disk cache and the remote work nicely.  The lateral tcp distribution
cache should be ok, but I don't think it is a good model to follow.  This is
primarily how Oracle's system works.

There is a little documentation in the mailing list archive.  Mostly
messages from the Jakarta commons and Turbine lists.  When i get this stable
enough it will go into the commons project and should improve dramatically.

Aaron


-----Original Message-----
From: Greg Haverkamp [mailto:gr...@ha...]
Sent: Monday, July 09, 2001 7:00 PM
To: jpo...@li...
Subject: [Jpolycache-users] Status?


I was wondering if someone had a capsule on the state of the jpolycache 
implementation, as well as a list of tasks where help might be needed.

I was in the pre-implementation phase of my own jcache mini-implementation
when I discovered this work on SourceForge, and I was able to get some
things
running in a matter of an hour or so last night.  However, I generate a fair
number of errors, and without having spent a lot of time looking at the
code, it wasn't clear to me that what I was seeing was what I wanted.

Specifically, while I had objects (Strings) going into and out of the cache,
I always lost the first.  And it appeared to me that only Disk and Remote
caches were implemented at this time.

A quick rundown on what I'm doing.  I'm working on specifying and
implementing
the caching infrastructure for the ArsDigita Community System, an
open-source
framework for developing web applications
(http://developer.arsdigita.com/acs-java).

Our current plan is to develop as little of a caching infrastructure as 
needed while leveraging those built by the app server vendors through a 
facade.  So far, Oracle seems to have the only worthwhile vendor-supplied
caching solution.

Anyhow, I've been told I can take some development cycles to either: a)
implement something small and limited on my own or b) contribute to another
open-source implementation.

Sorry for the rambling tone.

Greg

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