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https://issues.apache.org/jira/browse/HADOOP-12825?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sidharta Seethana updated HADOOP-12825:
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Status: Patch Available (was: Open)
> 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
> Attachments: HADOOP-12825.001.patch, getByName-call-graph.txt
>
>
> 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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