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https://issues.apache.org/jira/browse/HADOOP-6808?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved HADOOP-6808.
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Resolution: Fixed
> Document steps to enable {File|Ganglia}Context for kerberos metrics
> -------------------------------------------------------------------
>
> Key: HADOOP-6808
> URL: https://issues.apache.org/jira/browse/HADOOP-6808
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Affects Versions: 0.20.2, 0.22.0
> Reporter: Erik Steffl
> Priority: Trivial
> Attachments: HADOOP-6808-0.20.1xx.patch
>
>
> There was apatch adding kerberos metrics which included the following line in
> conf/hadoop-metrics.properties:
> ugi.class=org.apache.hadoop.metrics.spi.NullContext
> However to maintain consistency with dfs,jvm and mapred metrics and for
> documentation purpose we should include comments in the file to include steps
> to enable FileContext and GangliaContext as well. The following lines have to
> be included in conf/hadoop-metrics.properties:
> # Configuration of the "ugi" context for file
> #ugi.class=org.apache.hadoop.metrics.file.FileContext
> #ugi.period=10
> #ugi.fileName=/tmp/ugimetrics.log
> # Configuration of the "ugi" context for ganglia
> # ugi.class=org.apache.hadoop.metrics.ganglia.GangliaContext
> # ugi.period=10
> # ugi.servers=localhost:8649
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