[HADOOP-13715] Add isErasureCoded() API to FileStatus class

• Type: Sub-task
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 3.0.0-alpha4
• Component/s: fs
• Labels: hdfs-ec-3.0-must-do
• Target Version/s: 3.0.0-alpha4
• Assignee: Manoj Govindassamy
• Reporter: Wei-Chiu Chuang
• Created: 12/Oct/16 18:26
• Updated: 27/Mar/17 21:02
• Resolved: 24/Mar/17 18:46

Description

Per the discussion in HDFS-10971 I would like to add a new API isErasureCoded() to FileStatus so that tools and downstream applications can tell if it needs to treat a file differently.

Hadoop tools that can benefit from this effort include: distcp and teragen/terasort.
Downstream applications such as flume or hbase may also benefit from it.

Issue Links

• blocks: HDFS-10971 Distcp should not copy replication factor if source file is erasure coded
• duplicates: HDFS-8331 Erasure Coding: Create FileStatus isErasureCoded() method
• is depended upon by: HADOOP-14223 Extend FileStatus#toString() to include details like Erasure Coding and Encryption