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https://issues.apache.org/jira/browse/HDFS-16581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tao Li resolved HDFS-16581.
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Fix Version/s: 3.4.0
3.3.4
Resolution: Resolved
> Print node status when executing printTopology
> ----------------------------------------------
>
> 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
> Assignee: JiangHua Zhu
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 3.3.4
>
> Time Spent: 3h
> Remaining Estimate: 0h
>
> 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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