Masatake Iwasaki created HADOOP-12561:
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Summary: Add documentation about metrics system
Key: HADOOP-12561
URL: https://issues.apache.org/jira/browse/HADOOP-12561
Project: Hadoop Common
Issue Type: Improvement
Components: documentation
Reporter: Masatake Iwasaki
Assignee: Masatake Iwasaki
Though there is [reference of metric
items|https://hadoop.apache.org/docs/r2.7.1/hadoop-project-dist/hadoop-common/Metrics.html],
we have no documentation about metrics system and configuration. Adding
concise documentation about metrics system would help users, admins and
developers.
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