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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-5227.1.patch

1. Moved prefixed attributes to suffixed atrbiutes.
2. (map|reduce)_blacklisted means blacklisted slots actually, therefore renamed 
to map_slots_blacklisted and reduce_slots_blacklisted.
                
> 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: 1.1.2
>            Reporter: Tsuyoshi OZAWA
>            Assignee: Tsuyoshi OZAWA
>            Priority: Minor
>         Attachments: MAPREDUCE-5227.1.patch
>
>
> JobTrackerMetricsInst 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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