[HDFS-12686] Erasure coding system policy state is not correctly saved and loaded during real cluster restart

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Duplicate
• Affects Version/s: 3.0.0-beta1
• Labels: hdfs-ec-3.0-must-do
• Target Version/s: 3.0.0
• Assignee: Sammi Chen
• Reporter: Sammi Chen
• Created: 19/Oct/17 08:36
• Updated: 02/Oct/19 17:15
• Resolved: 24/Oct/17 20:23

Description

Inspired by HDFS-12682, I found the system erasure coding policy state will not be correctly saved and loaded in a real cluster. Through there are such kind of unit tests and all are passed with MiniCluster. It's because the MiniCluster keeps the same static system erasure coding policy object after the NN restart operation.

Issue Links

• Is contained by: HDFS-12682 ECAdmin -listPolicies will always show SystemErasureCodingPolicies state as DISABLED