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https://issues.apache.org/jira/browse/HDFS-1545?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12972724#action_12972724
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Jakob Homan commented on HDFS-1545:
-----------------------------------
Yipeng-
Thanks for the contribution. However, the output of the report is often
parsed by scripts; repeating the results would certainly confuse these.
Without a significant benefit, it's not worth it to change the output of this
report. Probably the best approach is just pipe the output through head.
Also, for future patches, please check the how to contribute section for
creating patches, rather than uploading individual files:
http://wiki.apache.org/hadoop/HowToContribute
> Repeat commonly viewed statistics at the end of dfsadmin -report
> ----------------------------------------------------------------
>
> Key: HDFS-1545
> URL: https://issues.apache.org/jira/browse/HDFS-1545
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: tools
> Affects Versions: 0.20.2
> Reporter: Yipeng Huang
> Priority: Trivial
> Attachments: DFSAdmin.java
>
> Original Estimate: 0.08h
> Remaining Estimate: 0.08h
>
> Safemode status, datanode's available, and capacity are the most commonly
> viewed statistics when running dfsadmin -report. They rightly appear first,
> followed by the statistics of individual datanodes.
> However with a large cluster, these commonly viewed statistics become
> obscured by the length of the individual datanode statistics. It is a tad
> ridiculous to have to have to grep or scroll to the top after a long list of
> nodes. For convenience, these commonly viewed statistics should be repeated
> at the end of the list.
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