[HDFS-16581] Print node status when executing printTopology

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Resolved
• Affects Version/s: 3.3.0
• Fix Version/s: 3.4.0, 3.3.5
• Component/s: dfsadmin, namenode
• Labels: pull-request-available
• Assignee: JiangHua Zhu
• Reporter: JiangHua Zhu
• Created: 17/May/22 14:37
• Updated: 19/Jun/22 22:50
• Resolved: 16/Jun/22 11:43

Description

We can use the dfsadmin tool to see which DataNodes the cluster has, and some of these nodes are alive, DECOMMISSIONED, or DECOMMISSION_INPROGRESS. It would be helpful if we could get this information in a timely manner, such as troubleshooting cluster failures, tracking node status, etc.

Issue Links

• causes: HDFS-16637 TestHDFSCLI#testAll consistently failing
• links to: GitHub Pull Request #4321