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Posted to hdfs-dev@hadoop.apache.org by "Amir Langer (JIRA)" <ji...@apache.org> on 2014/07/10 13:26:04 UTC

[jira] [Created] (HDFS-6661) Use BlockList instead of double linked list i.e BlockInfo triplets

Amir Langer created HDFS-6661:
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             Summary: Use BlockList instead of double linked list  i.e BlockInfo triplets 
                 Key: HDFS-6661
                 URL: https://issues.apache.org/jira/browse/HDFS-6661
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: namenode
    Affects Versions: 2.4.1
            Reporter: Amir Langer
             Fix For: 3.0.0, 2.5.0


Replace the triplets data structure with a BlockList instance per DatanodeStorageInfo. This requires to keep only two integers per replica in any BlockInfo object. (One is the index for the DatanodeStorageInfo and the other is the position of the block in that DatanodeStorageInfo BlockList).
   



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