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https://issues.apache.org/jira/browse/HDFS-10778?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15472983#comment-15472983
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Hudson commented on HDFS-10778:
-------------------------------
SUCCESS: Integrated in Jenkins build Hadoop-trunk-Commit #10407 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/10407/])
HDFS-10778. Add -format option to make the output of FileDistribution
(aajisaka: rev 63f594892ecd4687e37a99790288e36eb278849f)
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/OfflineImageViewer.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/FileDistributionVisitor.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/FileDistributionCalculator.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/OfflineImageViewerPB.java
* (edit)
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/tools/offlineImageViewer/TestOfflineImageViewer.java
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HdfsImageViewer.md
* (edit) hadoop-hdfs-project/hadoop-hdfs/src/site/markdown/HDFSCommands.md
> Add -format option to make the output of FileDistribution processor
> human-readable in OfflineImageViewer
> --------------------------------------------------------------------------------------------------------
>
> Key: HDFS-10778
> URL: https://issues.apache.org/jira/browse/HDFS-10778
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: tools
> Affects Versions: 2.7.1
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Fix For: 2.9.0, 3.0.0-alpha2
>
> Attachments: HDFS-10778.001.patch, HDFS-10778.002.patch,
> HDFS-10778.003.patch, HDFS-10778.004.patch, HDFS-10778.005.patch,
> HDFS-10778.006.patch
>
>
> Now It's not directly to understand the output result of the
> {{FileDistribution}} processor that in hdfs oiv command for users. For
> example, this is a original output:
> {code}
> Size NumFiles
> 0 22556
> 1048576 404971
> 2097152 29259
> 3145728 16937
> 4194304 9197
> 5242880 6889
> 6291456 4930
> 7340032 4070
> 8388608 299384
> 9437184 274623
> {code}
> Two aspects make that hard to understand for users.
> First, the size column just showed as the number in byte, it's not readable
> here. The better way is showed with a binary prefix.
> Second, the size column would be better to showed as a size range. It will
> let users know the value in {{NumFiles}} column was counted from A size to B
> size.
> The expected output result should be this:
> {code}
> Size Range NumFiles
> (0 B, 0 B] 1666332
> (0 B, 1 M] 778473
> (1 M, 2 M] 35125
> (2 M, 3 M] 13978
> (3 M, 4 M] 10158
> (4 M, 5 M] 6970
> {code}
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