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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5119) Persist CacheManager state in the edit log
Date Wed, 21 Aug 2013 21:00:52 GMT
Colin Patrick McCabe created HDFS-5119:
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             Summary: Persist CacheManager state in the edit log
                 Key: HDFS-5119
                 URL: https://issues.apache.org/jira/browse/HDFS-5119
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: namenode
    Affects Versions: HDFS-4949
            Reporter: Colin Patrick McCabe


CacheManager state should be persisted in the edit log.  At the moment, this state consists
of information about cache pools and cache directives.  It's not necessary to persist any
information about what is cached on the DataNodes at any particular moment, since this changes
all the time.

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