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https://issues.apache.org/jira/browse/MAPREDUCE-6067?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14120469#comment-14120469
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Todd Lipcon commented on MAPREDUCE-6067:
----------------------------------------
I also noticed this commented-out assertion:
{code}
// assertEquals("Native Reduce reduce group counter should equal orignal
reduce group counter",
// nativeReduceGroups.getValue(), normalReduceGroups.getValue());
{code}
Why is it commented out?
Perhaps we should re-enable assertions like this for all of the map counters.
> native-task: spilled records counter is incorrect
> -------------------------------------------------
>
> Key: MAPREDUCE-6067
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6067
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: task
> Reporter: Todd Lipcon
> Assignee: Binglin Chang
> Attachments: MAPREDUCE-6067.v1.patch, native-counters.html,
> trunk-counters.html
>
>
> After running a terasort, I see the spilled records counter at 5028651606,
> which is about half what I expected to see. Using the non-native collector I
> see the expected count of 10000000000. It seems the correct number of records
> were indeed spilled, because the job's output record count is correct.
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