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https://issues.apache.org/jira/browse/HADOOP-7627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122194#comment-13122194
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Luke Lu commented on HADOOP-7627:
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+1. We can probably fix this by adding/tweaking the add*(MetricsInfo, Number)
APIs. But I let's not go there for now.
> Improve MetricsAsserts to give more understandable output on failure
> --------------------------------------------------------------------
>
> Key: HADOOP-7627
> URL: https://issues.apache.org/jira/browse/HADOOP-7627
> Project: Hadoop Common
> Issue Type: Improvement
> Components: metrics, test
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Attachments: hadoop-7627.txt
>
>
> In developing a test case that uses MetricsAsserts, I had two issues:
> 1) the error output in the case that an assertion failed does not currently
> give any information as to the _actual_ value of the metric
> 2) there is no way to retrieve the metric variable (eg to assert that the sum
> of a metric over all DNs is equal to some value)
> This JIRA is to improve this test class to fix the above issues.
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