[HDFS-10850] getEZForPath should NOT throw FNF

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.8.0
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Component/s: hdfs
• Target Version/s: 2.8.0, 3.0.0-alpha2
• Hadoop Flags: Reviewed
• Assignee: Andrew Wang
• Reporter: Daryn Sharp
• Created: 09/Sep/16 18:19
• Updated: 30/Sep/16 14:21
• Resolved: 30/Sep/16 14:20

Description

HDFS-9433 made an incompatible change to the semantics of getEZForPath. It used to return the EZ of the closest ancestor path. It never threw FNF. A common use of getEZForPath to determining if a file can be renamed, or must be copied due to mismatched EZs. Notably, this has broken hive.

Issue Links

• is broken by: HDFS-9433 DFS getEZForPath API on a non-existent file should throw FileNotFoundException