JiangHua Zhu created HDFS-16581:
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Summary: Print DataNode node status
Key: HDFS-16581
URL: https://issues.apache.org/jira/browse/HDFS-16581
Project: Hadoop HDFS
Issue Type: Improvement
Components: dfsadmin, namenode
Affects Versions: 3.3.0
Reporter: JiangHua Zhu
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.
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