[HDDS-3139] Pipeline placement should select lowest load datanode as anchor

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: SCM
• Labels: pull-request-available
• Target Version/s: 1.0.0
• Assignee: Li Cheng
• Reporter: Li Cheng
• Created: 08/Mar/20 14:07
• Updated: 21/Apr/20 15:16
• Resolved: 21/Apr/20 15:16

Description

PipelinePlacementPolicy should select datanodes with lowest load as anchor. Current logic is to random choose one, which could cause imbalance. 

Issue Links

• links to: GitHub Pull Request #668