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Posted to hdfs-dev@hadoop.apache.org by "Ewan Higgs (JIRA)" <ji...@apache.org> on 2017/10/04 20:23:00 UTC

[jira] [Created] (HDFS-12591) [READ] Implement LevelDBFileRegionFormat

Ewan Higgs created HDFS-12591:
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             Summary: [READ] Implement LevelDBFileRegionFormat
                 Key: HDFS-12591
                 URL: https://issues.apache.org/jira/browse/HDFS-12591
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: hdfs
            Reporter: Ewan Higgs
            Priority: Minor


The existing work for HDFS-9806 uses an implementation of the {{FileRegion}} read from a csv file. This is good for testability and diagnostic purposes, but it is not very efficient for larger systems.

There should be a version that is similar to the {{TextFileRegionFormat}} that instead uses LevelDB.



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