Errors encountered in MROutputThread after the last map/reduce call can go
undetected
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Key: HADOOP-5746
URL: https://issues.apache.org/jira/browse/HADOOP-5746
Project: Hadoop Core
Issue Type: Bug
Components: contrib/streaming
Reporter: Devaraj Das
Fix For: 0.21.0
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.
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