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From "Henry Robinson (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3228) Use fadvise in local read path
Date Fri, 06 Apr 2012 23:02:16 GMT
Use fadvise in local read path
------------------------------

                 Key: HDFS-3228
                 URL: https://issues.apache.org/jira/browse/HDFS-3228
             Project: Hadoop HDFS
          Issue Type: Improvement
            Reporter: Henry Robinson
            Assignee: Henry Robinson
             Fix For: 3.0.0


The read path through BlockReaderLocal does not take advantage of readahead or drop-behind
in the way that BlockSender does. We could arguably stand to gain even more from hinting about
read patterns to the kernel here, so we should add the same mechanisms to BlockReaderLocal.


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