[HDFS-12448] Make sure user defined erasure coding policy ID will not overflow

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: erasure-coding
• Labels: hdfs-ec-3.0-nice-to-have
• Hadoop Flags: Reviewed
• Assignee: Huafeng Wang
• Reporter: Sammi Chen
• Created: 14/Sep/17 08:14
• Updated: 20/Oct/17 02:46
• Resolved: 20/Oct/17 01:43

Description

Current policy ID is of type "byte". 1~63 is reserved for built-in erasure coding policy. 64 above is for user defined erasure coding policy. Make sure user policy ID will not overflow when addErasureCodingPolicy API is called.