Yiqun Lin created HDFS-10778:
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Summary: Optimize the output result of FileDistribution processor
in hdfs oiv command
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
Priority: Minor
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, 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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