Mention what is the hadoop mapreduce apis contract for a key and value class?
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What is MapReduce?
What is the role of a MapReduce partitioner?
What is the InputSplit in map reduce ?
Detail description of the Reducer phases?
Is it possible to rename the output file?
List the network requirements for using Hadoop ?
Explain the features of Apache Spark because of which it is superior to Apache MapReduce?
what is NameNode in Hadoop?
What is Distributed Cache in the MapReduce Framework?
How does Hadoop Classpath plays a vital role in stopping or starting in Hadoop daemons?
What is the role of recordreader in hadoop mapreduce?
Compare RDBMS with Hadoop MapReduce.
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)