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https://issues.apache.org/jira/browse/HDFS-9017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741956#comment-14741956
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Vinayakumar B commented on HDFS-9017:
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bq. Ideally last contact for nodes that never connected would be "never"
instead of the epoch or boot time.
AFAIK, Nodes those never connected will never show even in 'Dead' nodes list.
Because NN doesnt persist Nodes information.
'dead' nodes from NN UI are only those nodes which are connected but got lost.
Am I missing something here?
Also for the available dead nodes list, Can you confirm similar problem exists
in new HTML5 UI?
> UI shows wrong last contact for dead nodes
> ------------------------------------------
>
> Key: HDFS-9017
> URL: https://issues.apache.org/jira/browse/HDFS-9017
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.6.0
> Reporter: Daryn Sharp
> Assignee: J.Andreina
> Priority: Minor
>
> It's showing the last contact as the restart of the NN host (not process,
> host). Presumably it's using monotonic time 0. Ideally last contact for
> nodes that never connected would be "never" instead of the epoch or boot time.
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