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From Apache Wiki <wikidi...@apache.org>
Subject [Db-derby Wiki] Update of "CodingProjects" by OysteinGrovlen
Date Tue, 25 Apr 2006 12:56:43 GMT
Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Db-derby Wiki" for change notification.

The following page has been changed by OysteinGrovlen:
http://wiki.apache.org/db-derby/CodingProjects

------------------------------------------------------------------------------
  ||Server management tools. || ||Tools to manage checkpoints/backups, data and log placement,
lock monitoring, performance monitoring, etc.  Each one of these is its own separate project||
|| ||
  ||Add incremental support for JMX||David Van Couvering||Start with something simple like
"is the server up or down" and grow from there.|| || ||
  ||Automatic copying of log from the log directory to an archive|| || || ||
- ||Implement an LRU-based cache manager to replace the current clock algorithm||Øystein
Grøvlen?|| || ||
+ ||Implement an LRU-based cache manager to replace the current clock algorithm||Øystein
Grøvlen?|| Derby currently uses a clock algorithm to determine which pages to replace in
its page cache. We have indications that this algorithm is far from optimal for some type
of loads.  Many other database systems use variants of an LRU-based algorithm, i.e. the pages
that are least recently used will be candidates for replacement. || LRUCache ||
  

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