[HDFS-11152] Start erasure coding policy ID number from 1 instead of 0 to void potential unexpected errors

• Type: Task
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 3.0.0-alpha4
• Component/s: erasure-coding
• Labels: hdfs-ec-3.0-must-do
• Target Version/s: 3.0.0-alpha4
• Hadoop Flags: Incompatible change
• Release Note: The NameNode metadata for storing erasure coding policies has changed.
• Assignee: Sammi Chen
• Reporter: Sammi Chen
• Created: 17/Nov/16 06:09
• Updated: 02/Oct/19 17:13
• Resolved: 08/Mar/17 16:49

Description

This task will change erasure coding policy ID number starting from 1 instead of current 0, to avoid some potential unexpected errors in codes since 0 is default value for integer variables.