how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?
No Answer is Posted For this Question
Be the First to Post Answer
Explain about the basic parameters of mapper and reducer function
How can you add the arbitrary key-value pairs in your mapper?
what does the conf.setMapper Class do ?
Where sorting is done in Hadoop MapReduce Job?
How to overwrite an existing output file during execution of mapreduce jobs?
What is a TaskInstance?
What can be optimum value for Reducer?
when do reducers play their role in a mapreduce task?
Why Hadoop MapReduce?
What happens when the node running the map task fails before the map output has been sent to the reducer?
What is the next step after Mapper or MapTask?
What is a map side join?
Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)
Apache Spark (991)
Apache HBase (164)
Apache Flume (95)
Apache Impala (72)
Apache Cassandra (392)
Apache Mahout (35)
Apache Sqoop (82)
Apache ZooKeeper (65)
Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)
Apache Avro (26)
Apache Presto (15)
Apache Tajo (26)
Hadoop General (407)