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From Aaron Smuts <asm...@yahoo.com>
Subject new features in jcs-1.2-dev
Date Wed, 12 Jan 2005 07:57:49 GMT
New in jcs-1.2-dev:

http://cvs.apache.org/viewcvs.cgi/*checkout*/jakarta-turbine-jcs/tempbuild/jcs-1.2-dev.jar?rev=1.1

1. The disk cache now has more configuration options 
exposed.  You can set the purgatory size, recycle bin
size, etc.  Also, you can set a bound on the
purgatory.  This solves the possibility or an ever
growing purgatory when used with a bounded queue.

The disk cache options are described on the web site.

http://jakarta.apache.org/turbine/jcs/IndexedDiskAuxCache.html

Here are the parameters:
  
jcs.auxiliary.DC.attributes.MaxPurgatorySize=10000
jcs.auxiliary.DC.attributes.MaxKeySize=10000
jcs.auxiliary.DC.attributes.MaxRecycleBinSize=5000
jcs.auxiliary.DC.attributes.OptimizeAtRemoveCount=300000

2. Optional, configurable thread pools can be set for 
all auxiliaries.  By default the single queue is used.
(Will document later.)

3. Memory shrinkers for all regions now share one
thread and are executed by a Doug Lea Clock Daemon. 
This helps keep the number of threads used by the
cache to a minimum.

4. As of version 1.1.2-dev, the potential lock on
remove and put is solved.

5. As of version 1.1.2-dev, better statistics are
gathered.  I will update the JCSAmin.jsp to dump the
new data and to stop counting the byte size of a
region by default.

6. As of version 1.3-dev, you can specify the remote
gets to timeout by using a configurable thread pool.


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