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From "Akira AJISAKA (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-12822) Change "Metrics intern cache overflow" log level from WARN to INFO
Date Thu, 18 Feb 2016 16:53:24 GMT
Akira AJISAKA created HADOOP-12822:
--------------------------------------

             Summary: Change "Metrics intern cache overflow" log level from WARN to INFO
                 Key: HADOOP-12822
                 URL: https://issues.apache.org/jira/browse/HADOOP-12822
             Project: Hadoop Common
          Issue Type: Improvement
          Components: metrics
            Reporter: Akira AJISAKA
            Priority: Minor


Interns.java outputs "Metrics intern cache over flow" warn log for metrics info/tag when the
cache reaches the hard-coded limit and the oldest cache is discarded for the first time. I'm
thinking this log level can be changed to info because
* there is no problem when the oldest cache is removed. if the metrics info/tag is not in
the cache, simply create it.
* we cannot configure the maximum size of the cache, so there is no way to stop the warn log.



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