Job ConfigurationTask Execution & Environment Memory ManagementMap ParametersShuffle/Reduce ParametersConfigured ParametersTask LogsDistributing Libraries Job Submission and Monitoring Job Control Job Input InputSplitRecordReader Job Output OutputCommitterTask Side-Effect FilesRecordWriter Other Useful Features Submitting Jobs to QueuesCountersDistributedCacheProfilingDebuggingData CompressionSkipping Bad Records Example: WordCount v2.0 Source CodeSample RunsHighlights