jobID() lookup failure should notify client
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Key: HADOOP-4725
URL: https://issues.apache.org/jira/browse/HADOOP-4725
Project: Hadoop Core
Issue Type: Improvement
Components: mapred
Affects Versions: 0.19.1
Reporter: Aaron Kimball
Priority: Minor
Fix For: 0.20.0
https://issues.apache.org/jira/browse/HADOOP-4420 (which also fixes
https://issues.apache.org/jira/browse/HADOOP-4419) gracefully handles null ptr
exceptions if JobTracker.setJobPriority() and killJob() get a null reference
back from JobID lookup by returning silently. Future versions, though, should
throw a better exception back to the client (see this comment:
https://issues.apache.org/jira/browse/HADOOP-4419?focusedCommentId=12639889#action_12639889)
so they can handle the problem.
This JIRA is for the separate issue of the API change that would require.
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