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From "Luke Lu (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7627) Improve MetricsAsserts to give more understandable output on failure
Date Thu, 06 Oct 2011 19:49:30 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13122194#comment-13122194
] 

Luke Lu commented on HADOOP-7627:
---------------------------------

+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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