Hadoop Map/Reduce
  1. Hadoop Map/Reduce
  2. MAPREDUCE-3384

Add warning message for underflow or overflow

    Details

    • Type: Improvement Improvement
    • Status: Open
    • Priority: Major Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      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
      
      1. MAPREDUCE-3384.patch
        2 kB
        JiangKai
      2. MAPREDUCE-3384-002.patch
        6 kB
        Brahma Reddy Battula
      3. MAPREDUCE-3384-003.patch
        9 kB
        Brahma Reddy Battula
      4. MAPREDUCE-3384-004.patch
        10 kB
        Brahma Reddy Battula
      5. MAPREDUCE-3384-005.patch
        10 kB
        Brahma Reddy Battula

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            • Assignee:
              Brahma Reddy Battula
              Reporter:
              JiangKai
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              Dates

              • Created:
                Updated:

                Development