[HDDS-3667] If we gracefully stop datanode it would be better to notify scm and recon

• Type: New Feature
• Status: In Progress
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.0.0
• Component/s: Ozone Datanode, Ozone Recon, SCM
• Labels: pull-request-available
• Target Version/s: 1.3.0
• Assignee: Lisheng Sun
• Reporter: Baolong Mao
• Created: 26/May/20 13:50
• Updated: 20/Oct/21 20:37

Description

if you execute `bin/ozone --daemon stop datanode`, datanode would be better if it handle the signal and the stop dn request to scm, then scm update datanode state to dead.

It would be better if you provide a admin cli tool to support remove datanode manually.

ozone admin datanode remove <UUID>

Issue Links

• links to: GitHub Pull Request #1033