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From "ryan rawson (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-2945) stop using string for block name in LRU block cache/hfile
Date Wed, 01 Sep 2010 01:28:53 GMT
stop using string for block name in LRU block cache/hfile
---------------------------------------------------------

                 Key: HBASE-2945
                 URL: https://issues.apache.org/jira/browse/HBASE-2945
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.89.20100621
            Reporter: ryan rawson


all my profiling runs indicate there is a large number of string/char[] objects and string
manipulation is taking a long time in profiling runs.  These come from the LRU block cache,
block id.  Also we should support the eviction of blocks belonging to particular hfiles, and
the current code doesn't help with that right now.

Let's do something better.  Whatever that might be.

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