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Posted to hdfs-dev@hadoop.apache.org by "Colin Patrick McCabe (JIRA)" <ji...@apache.org> on 2014/01/22 20:07:26 UTC

[jira] [Created] (HDFS-5810) Unify mmap cache and short-circuit file descriptor cache

Colin Patrick McCabe created HDFS-5810:
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             Summary: Unify mmap cache and short-circuit file descriptor cache
                 Key: HDFS-5810
                 URL: https://issues.apache.org/jira/browse/HDFS-5810
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: hdfs-client
            Reporter: Colin Patrick McCabe
            Assignee: Colin Patrick McCabe


We should unify the client mmap cache and the client file descriptor cache.  Since mmaps are granted corresponding to file descriptors in the cache (currently FileInputStreamCache), they have to be tracked together to do "smarter" things like HDFS-5182.



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