HDFS Federation: Rename BlockPool class to BlockPoolSlice
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Key: HDFS-1674
URL: https://issues.apache.org/jira/browse/HDFS-1674
Project: Hadoop HDFS
Issue Type: Sub-task
Components: data-node
Affects Versions: Federation Branch
Reporter: Tanping Wang
Assignee: Tanping Wang
Priority: Minor
Fix For: Federation Branch
HDFS Federation (porting):
The class BlockPool is poorly named as it does not represent an actual
BlockPool, but rather that slice of the overall BlockPool for which a single
DataNode is responsible. Renames BlockPool, BlockPoolStorage, BlockPoolScanner
to BlockPoolSlice*. Moves BlockPookSlice out of FSDataSet to a stand-alone
class. Updates references to these structures. Other references to BlockPools
seem appropriate in the context of the code.
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