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https://issues.apache.org/jira/browse/HDFS-10838?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15478006#comment-15478006
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Arpit Agarwal commented on HDFS-10838:
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Thank you for the updated patch [~surendrasingh]. Looks good, two more comments.
# Sorry for not catching this earlier - we should call
{{node.setLastBlockReportTime(now());}} only if {{lastStorageInRpc}} is true
i.e. when all storages have been processed.
# Do you know what {{helper_relative_time_now}} will print if the value is
zero? The current "a few seconds ago" looks great actually but I think we can
print in the same format as heartbeat time so it remains numerically sortable.
> Last full block report received time for each DN should be easily discoverable
> ------------------------------------------------------------------------------
>
> Key: HDFS-10838
> URL: https://issues.apache.org/jira/browse/HDFS-10838
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ui
> Reporter: Arpit Agarwal
> Assignee: Surendra Singh Lilhore
> Attachments: DFSAdmin-Report.png, HDFS-10838-001.patch,
> HDFS-10838.002.patch, HDFS-10838.003.patch, NN_UI.png, NN_UI_relative_time.png
>
>
> It should be easy for administrators to discover the time of last full block
> report from each DataNode.
> We can show it in the NameNode web UI or in the output of {{hdfs dfsadmin
> -report}}, or both.
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