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Posted to common-issues@hadoop.apache.org by "Todd Lipcon (Commented) (JIRA)" <ji...@apache.org> on 2011/10/11 23:01:12 UTC

[jira] [Commented] (HADOOP-7734) metrics2 class names inconsistent between trunk and 20x

    [ https://issues.apache.org/jira/browse/HADOOP-7734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13125386#comment-13125386 ] 

Todd Lipcon commented on HADOOP-7734:
-------------------------------------

Some examples:
- JvmMetricsSource vs JvmMetrics
- MetricMutableStat* vs MutableStat*
- MetricsBuilder vs MetricsCollector
maybe some others
                
> metrics2 class names inconsistent between trunk and 20x
> -------------------------------------------------------
>
>                 Key: HADOOP-7734
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7734
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: metrics
>    Affects Versions: 0.20.205.0, 0.23.0
>            Reporter: Todd Lipcon
>            Priority: Critical
>
> The new metrics2 framework was backported into the 20x branch, but the class names differ between the two branches. So, if anyone were to build against the metrics2 API in 20x, it would break when they upgraded to 23. We should reconcile the two so that they are API-compatible.

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