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https://issues.apache.org/jira/browse/MAPREDUCE-5304?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13676537#comment-13676537
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Karthik Kambatla commented on MAPREDUCE-5304:
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Thanks [~zjshen] for your inputs. I agree on the confusing naming (even I found
it confusing), but I basically picked the name from the method in
ClientProtocol. Also, the newly added method is annotated @Private, so
end-users shouldn't be using it. I can change the name if you insist;
otherwise, I ll leave it consistent with ClientProtocol. What do you think?
I was under the impression that we are prioritizing 1.0 -> 2.0 compatibility
over 0.23 -> 2.0 compatibility. Correct me if I am wrong. If the decision has
not been made, it might be better to discuss it on the mailing list so everyone
knows.
> mapreduce.Job killTask/failTask/getTaskCompletionEvents methods have
> incompatible signature changes
> ---------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-5304
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5304
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Affects Versions: 2.0.4-alpha
> Reporter: Alejandro Abdelnur
> Assignee: Karthik Kambatla
> Priority: Blocker
> Attachments: mr-5304-1.patch
>
>
> Pointed out by [~zjshen] in MAPREDUCE-4942.
> In {{o.a.h.mapreduce.Job}} class, the following changed from Hadoop 1 to
> Hadoop 2.
> boolean failTask(TaskAttemptID): Change in return type from void to boolean.
> boolean killTask(TaskAttemptID): Change in return type from void to boolean.
> TaskCompletionEvent[] getTaskCompletionEvents(int): Change in return type
> from org.apache.hadoop.mapred.TaskCompletionEvent[] to
> org.apache.hadoop.mapreduce.TaskCompletionEvent[].
> Using same rational as in other JIRAs, we should fix this to ensure Hadoop 1
> to Hadoop 2 source compatibility (taking 0.23.x releases as a casualty as
> there is not right way for everybody because we screwed up :( ). Flagging it
> as incompatible change because of 0.23.
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