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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