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https://issues.apache.org/jira/browse/HADOOP-17805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17381490#comment-17381490
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Ayush Saxena commented on HADOOP-17805:
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Is the plan to store values and generate overall statistics?
Give a check if you can use
\{{org.apache.commons.math3.stat.descriptive.DescriptiveStatistics}} or
\{{org.apache.commons.math3.stat.descriptive.SummaryStatistics}} or someone
from the family
> IOStatistisSource to add new adder methods
> ------------------------------------------
>
> Key: HADOOP-17805
> URL: https://issues.apache.org/jira/browse/HADOOP-17805
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs
> Affects Versions: 3.3.1
> Reporter: Steve Loughran
> Priority: Minor
>
> Based on experience of Manifest committer of MAPREDUCE-7341:
> * operation to take a key and a count and a mean entry, min, max and count:
> addStatsSample(String key, long count)
> * operation to add a mean and sample count to a mean value.
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