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https://issues.apache.org/jira/browse/MAPREDUCE-467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12729596#action_12729596
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Iyappan Srinivasan commented on MAPREDUCE-467:
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Tested some important scenarios and found them to pass:
1) After restarting a blacklisted tasktracker, it shd be made healthy and
continue to receive task numbers. - In 5 node cluster. :Pass
2) After task tracker is killed and goes out of node list, otehr nodes recive
these tasks and execute them. Number of tasks match.
3) Some task attempts are killed. The numbers captured reflects teh failures
properly.
4) Do a job restart. task trackers should start receiveing tasks again and
reflect it in their windows..
5) For blacklisting scenarios, first MAPREDUCE-746 needs to be fixed.
> Collect information about number of tasks succeeded / total per time unit for
> a tasktracker.
> ---------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-467
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-467
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Reporter: Hemanth Yamijala
> Assignee: Sharad Agarwal
> Attachments: 467_v4.patch, 467_v5.patch, 467_v6.patch, 467_v7.patch,
> 5931_v1.patch, 5931_v2.patch, 5931_v3.patch
>
>
> Collecting information of number of tasks succeeded / total per tasktracker
> and being able to see these counts per hour, day and since start time will
> help reason about things like the blacklisting strategy.
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