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https://issues.apache.org/jira/browse/HADOOP-7630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13107387#comment-13107387
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Luke Lu commented on HADOOP-7630:
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The default period is 10 seconds, which has been production for over a year
now. 60 seconds is too long. Note, this has nothing to do with graphs, just the
snapshot/publish period. Typical metrics aggregator (simon is configured at 60
seconds for graphing resolution) needs a few samples in the aggregate period
for derived metrics.
> hadoop-metrics2.properties should have a property *.period set to a default
> value foe metrics
> ---------------------------------------------------------------------------------------------
>
> Key: HADOOP-7630
> URL: https://issues.apache.org/jira/browse/HADOOP-7630
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Reporter: Arpit Gupta
> Assignee: Eric Yang
> Fix For: 0.20.205.0, 0.23.0
>
> Attachments: HADOOP-7630-trunk.patch, HADOOP-7630.patch
>
>
> currently the hadoop-metrics2.properties file does not have a value set for
> *.period
> This property is useful for metrics to determine when the property will
> refresh. We should set it to default of 60
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