Hongyu Cai created HADOOP-17662:
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Summary: Hadoop Customed Counter
Key: HADOOP-17662
URL: https://issues.apache.org/jira/browse/HADOOP-17662
Project: Hadoop Common
Issue Type: Task
Reporter: Hongyu Cai
I have run a hadoop job and set multiple reducers in the reduce phase, then I
have customize a counter to sum the results of multiple reducers. However, the
data type of the result in each reducer is double, while the increment method
of conuter only supports the long data type. If the conversion from double to
long is forced, the precision will be lost. How can I solve this problem?
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