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 Priority: Minor Fix For: 0.24.0 When we call the function reduce() of LongSumReducer,the result may overflow. We should send a warning message to users if overflow occurs. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira