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https://issues.apache.org/jira/browse/MAPREDUCE-5227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsuyoshi OZAWA updated MAPREDUCE-5227:
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Attachment: MAPREDUCE-5227-branch-1.1.patch
Fixed typo.
> JobTrackerMetricsSource and QueueMetrics should standardize naming rules
> ------------------------------------------------------------------------
>
> Key: MAPREDUCE-5227
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5227
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv1
> Affects Versions: 1.1.3, 1.2.1
> Reporter: Tsuyoshi OZAWA
> Assignee: Tsuyoshi OZAWA
> Priority: Minor
> Attachments: MAPREDUCE-5227-1.1-branch.1.patch,
> MAPREDUCE-5227.1.patch, MAPREDUCE-5227-branch-1.1.patch
>
>
> JobTrackerMetricsSource and QueueMetrics provides users with some metrics,
> but its naming rules( "jobs_running", "running_maps", "running_reduces")
> sometimes confuses users. It should be standardized.
> One concern is backward compatibility, so one idea is to share
> MetricMutableGaugeInt object from old and new property name.
> e.g. to share runningMaps from "running_maps" and "maps_running".
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