Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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None
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None
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None
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Reviewed
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Description
The framework map/reduce bridge methods make a check at the beginning of the respective methods whether MROutputThread encountered an exception while writing keys/values that the streaming process emitted. However, if the exception happens in MROutputThread after the last call to the map/reduce method, the exception goes undetected. An example of such an exception is an exception from the DFSClient that fails to write to a file on the HDFS.