Reduce redundant copy of Block object in BlocksMap.map hash map
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Key: HADOOP-3272
URL: https://issues.apache.org/jira/browse/HADOOP-3272
Project: Hadoop Core
Issue Type: Bug
Components: dfs
Affects Versions: 0.18.0
Environment: All
Reporter: lohit vijayarenu
Assignee: lohit vijayarenu
Fix For: 0.18.0
Looks like we might have redundant copy of Block object as Key for
BlocksMap.map hash map. We should restore this to using same object for both
Key, Value to save space.
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