[HADOOP-14169] Implement listStatusIterator, listLocatedStatus for ViewFs

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.6.5
• Fix Version/s: 2.9.0, 2.7.4, 3.0.0-alpha4, 2.8.2
• Component/s: viewfs
• Target Version/s: 2.7.4
• Hadoop Flags: Reviewed
• Assignee: Erik Krogen
• Reporter: Erik Krogen
• Created: 10/Mar/17 01:15
• Updated: 08/Jun/17 00:09
• Resolved: 18/Mar/17 00:49

Description

Similar to what HADOOP-11812 did for ViewFileSystem, currently ViewFs does not respect optimizations to listStatusIterator or listLocatedStatus, using the naive implementations within AbstractFileSystem. This can cause performance issues if iterating over a large directory, especially if the locations are also needed. This can be easily fixed.

Issue Links

• is related to: HADOOP-11812 Implement listLocatedStatus for ViewFileSystem to speed up split calculation