[HADOOP-6201] FileSystem::ListStatus should throw FileNotFoundException

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.21.0
• Component/s: fs
• Hadoop Flags: Incompatible change, Reviewed

Release Note

FileSystem listStatus method throws FileNotFoundException for all implementations. Application code should catch or propagate FileNotFoundException.

• Assignee: Jakob Homan
• Reporter: Jakob Homan
• Created: 18/Aug/09 18:19
• Updated: 02/May/13 02:29
• Resolved: 21/Aug/09 22:50

Description

As discussed in HDFS-538, it would be better for FileSystem and its implementations to throw FileNotFoundException when the file is not found, rather than returning null. This will bring it in line with getFileStatus and, I expect, default user expectations.

Issue Links

• blocks: HDFS-538 DistributedFileSystem::listStatus incorrectly returns null for empty result sets
• is depended upon by: MAPREDUCE-895 FileSystem::ListStatus will now throw FileNotFoundException, MapRed needs updated
• is related to: HADOOP-7352 FileSystem#listStatus should throw IOE upon access error