Arpit Agarwal created HDFS-6900:
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Summary: Eliminate DU thread per block pool slice
Key: HDFS-6900
URL: https://issues.apache.org/jira/browse/HDFS-6900
Project: Hadoop HDFS
Issue Type: Improvement
Components: datanode
Affects Versions: 2.5.0
Reporter: Arpit Agarwal
We use one DU thread per block pool slice to compute disk usage information. In
addition to the thread overhead this results in the disk usage information
being out of date for up to 10 minutes at a time. We can refresh it more
frequently but then we'd be launching a shell command per block pool slice even
more often.
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