Mingliang Liu created HADOOP-13435:
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Summary: Add thread local mechanism for aggregating file system
storage stats
Key: HADOOP-13435
URL: https://issues.apache.org/jira/browse/HADOOP-13435
Project: Hadoop Common
Issue Type: Sub-task
Components: fs
Reporter: Mingliang Liu
Assignee: Mingliang Liu
As discussed in [HADOOP-13032], this is to add thread local mechanism for
aggregating file system storage stats. This class will also be used in
[HADOOP-13031], which is to separate the distance-oriented rack-aware read
bytes logic from {{FileSystemStorageStatistics}} to new
DFSRackAwareStorageStatistics as it's DFS-specific. After this patch, the
{{FileSystemStorageStatistics}} can live without the to-be-removed
{{FileSystem$Statistics}} implementation.
A unit test should also be added.
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