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https://issues.apache.org/jira/browse/MAPREDUCE-4942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13673667#comment-13673667
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Zhijie Shen commented on MAPREDUCE-4942:
----------------------------------------
Just found three more methods that have to break either MR1 or 0.23 binary
compatibility.
* 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[].
> mapreduce.Job has a bunch of methods that throw InterruptedException so its
> incompatible with MR1
> -------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-4942
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4942
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: mrv2
> Affects Versions: 2.0.2-alpha
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Fix For: 2.1.0-beta
>
> Attachments: MAPREDUCE-4942.patch
>
>
> The following methods in MR2's {{org.apache.hadoop.mapreduce.Job}} throw an
> {{InterruptedException}} but don't in MR1, which makes them incompatible.
> (Their Javadoc comments are also missing that they throw an
> {{InterruptedException}} anyway)
> I propose that we wrap the {{InterruptedException}} in a
> {{RuntimeException}}.
> {code}
> public float setupProgress() throws IOException, InterruptedException
> public float mapProgress() throws IOException, InterruptedException
> public float reduceProgress() throws IOException, InterruptedException
> public boolean isComplete() throws IOException, InterruptedException
> public boolean isSuccessful() throws IOException, InterruptedException
> public void killJob() throws IOException, InterruptedException
> public void killTask(org.apache.hadoop.mapreduce.TaskAttemptID) throws
> IOException, InterruptedException
> public void failTask(org.apache.hadoop.mapreduce.TaskAttemptID) throws
> IOException, InterruptedException
> public Counters getCounters() throws IOException, InterruptedException
> {code}
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