Sidharta Seethana created HADOOP-12825:
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Summary: Log slow name resolutions
Key: HADOOP-12825
URL: https://issues.apache.org/jira/browse/HADOOP-12825
Project: Hadoop Common
Issue Type: Improvement
Reporter: Sidharta Seethana
Assignee: Sidharta Seethana
Logging slow name resolutions would be useful in identifying DNS performance
issues in a cluster. Most resolutions go through
{{org.apache.hadoop.security.SecurityUtil.getByName}} ( see attached call graph
). Adding additional logging to this method would expose such issues.
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