[ https://issues.apache.org/jira/browse/MAPREDUCE-3384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Devaraj K updated MAPREDUCE-3384: --------------------------------- 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, {code:xml} /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 {code} was: When we call the function reduce() of LongSumReducer,the result may overflow. We should send a warning message to users if overflow occurs. > Add warning message for org.apache.hadoop.mapreduce.lib.reduce.LongSumReducer > ----------------------------------------------------------------------------- > > Key: MAPREDUCE-3384 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-3384 > Project: Hadoop Map/Reduce > Issue Type: Improvement > Reporter: JiangKai > Assignee: Brahma Reddy Battula > Attachments: MAPREDUCE-3384-002.patch, MAPREDUCE-3384-003.patch, > MAPREDUCE-3384.patch > > > 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, > {code:xml} > /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 > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)