Chris Nauroth created HDFS-9038:
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Summary: Reserved space is erroneously counted towards non-DFS
used.
Key: HDFS-9038
URL: https://issues.apache.org/jira/browse/HDFS-9038
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode
Affects Versions: 2.7.1
Reporter: Chris Nauroth
HDFS-5215 changed the DataNode volume available space calculation to consider
the reserved space held by the {{dfs.datanode.du.reserved}} configuration
property. As a side effect, reserved space is now counted towards non-DFS
used. I don't believe it was intentional to change the definition of non-DFS
used. This issue proposes restoring the prior behavior: do not count reserved
space towards non-DFS used.
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