Steve Loughran created HDFS-12831:
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Summary: HDFS throws FileNotFoundException on
getFileBlockLocations(path-to-directory)
Key: HDFS-12831
URL: https://issues.apache.org/jira/browse/HDFS-12831
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.8.1
Reporter: Steve Loughran
The HDFS implementation of {{getFileBlockLocations(path, offset, len)}} throws
an exception if the path references a directory.
The base implementation (and all other filesystems) just return an empty array,
something implemented in {{getFileBlockLocations(filestatsus, offset, len)}};
something written up in filesystem.md as the correct behaviour.
# has been shown to break things: SPARK-14959
# there's no contract tests for these APIs; shows up in HADOOP-15044.
# even if this is considered a wontfix, it should raise something like
{{PathIsDirectoryException}} rather than FNFE
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