[HDFS-12409] Add metrics of execution time of different stages in EC recovery task

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha3
• Fix Version/s: 3.0.0-beta1
• Component/s: erasure-coding
• Target Version/s: 3.0.0-beta1
• Assignee: Lei (Eddy) Xu
• Reporter: Lei (Eddy) Xu
• Created: 08/Sep/17 20:49
• Updated: 28/Sep/17 17:21
• Resolved: 14/Sep/17 00:15

Description

Admin can use more metrics to monitor EC recovery tasks, to get insights to tune recovery performance.