What is the use of reducer in Hadoop 2024?

Benjamin Stewart | 2023-04-17 09:28:02 | page views:1415
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Julian Davis

Works at the International Telecommunication Union, Lives in Geneva, Switzerland.
In Hadoop, Reducer takes the output of the Mapper (intermediate key-value pair) process each of them to generate the output. The output of the reducer is the final output, which is stored in HDFS. ... We will also discuss how many reducers are required in Hadoop and how to change the number of reducers in Hadoop MapReduce.
2023-04-26 09:28:02

Charlotte Anderson

QuesHub.com delivers expert answers and knowledge to you.
In Hadoop, Reducer takes the output of the Mapper (intermediate key-value pair) process each of them to generate the output. The output of the reducer is the final output, which is stored in HDFS. ... We will also discuss how many reducers are required in Hadoop and how to change the number of reducers in Hadoop MapReduce.
ask:3,asku:1,askr:137,askz:21,askd:152,RedisW:0askR:3,askD:0 mz:hit,askU:0,askT:0askA:4