Details
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Improvement
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Status: Open
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Major
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Resolution: Unresolved
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None
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Description
When we call the function reduce() of LongSumReducer,the result may overflow or underflow.
We should have a warning message to users if overflow/underflow occurs for all these classes,
/java/org/apache/hadoop/mapred/lib/LongSumReducer.java .../apache/hadoop/mapreduce/lib/reduce/IntSumReducer.java .../apache/hadoop/mapreduce/lib/reduce/LongSumReducer.java .../test/java/org/apache/hadoop/fs/AccumulatingReducer.java .../hadoop/mapred/nativetask/kvtest/HashSumReducer.java
Attachments
Attachments
Issue Links
- duplicates
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MAPREDUCE-3385 Add warning message for the overflow in reduce() of org.apache.hadoop.mapreduce.lib.reduce.IntSumReducer
- Resolved