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https://issues.apache.org/jira/browse/MAPREDUCE-2125?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12927924#action_12927924
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Luke Lu commented on MAPREDUCE-2125:
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bq. added intern() in for the filesystem counter. JobCounter and TaskCounter
use enum. They are OK.
I also meant the metrics names regenerated on every doUpdate with regex replace
and lowercase.
> Put map-reduce framework counters to JobTrackerMetricsInst
> ----------------------------------------------------------
>
> Key: MAPREDUCE-2125
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2125
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker
> Affects Versions: 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
> Attachments: MAPREDUCE-2125-v2.txt, MAPREDUCE-2125.txt
>
>
> We have lots of useful information in the framework counters including
> #spills, filesystem read and write.
> It will be nice to put them all in the jobtracker metrics to get a global
> view of all these numbers.
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