Shuyan Zhang created HADOOP-18426:
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Summary: Improve the accuracy of MutableStat mean
Key: HADOOP-18426
URL: https://issues.apache.org/jira/browse/HADOOP-18426
Project: Hadoop Common
Issue Type: Bug
Reporter: Shuyan Zhang
The current MutableStat mean calculation method is more prone to loss accuracy
because the sum of samples is too large. We can process each sample on its own
to improve mean accuracy.
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