Erik Krogen created HADOOP-15726:
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Summary: Create utility to limit frequency of log statements
Key: HADOOP-15726
URL: https://issues.apache.org/jira/browse/HADOOP-15726
Project: Hadoop Common
Issue Type: Improvement
Components: common, util
Reporter: Erik Krogen
Assignee: Erik Krogen
There is a common pattern of logging a behavior that is normally extraneous.
Under some circumstances, such a behavior becomes common, flooding the logs and
making it difficult to see what else is going on in the system. Under such
situations it is beneficial to limit how frequently the extraneous behavior is
logged, while capturing some summary information about the suppressed log
statements.
This is currently implemented in {{FSNamesystemLock}} (in HDFS-10713). We have
additional use cases for this in HDFS-13791, so this is a good time to create a
common utility for different sites to share this logic.
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