How to create custom key and custom value in MapReduce Job?
No Answer is Posted For this Question
Be the First to Post Answer
What is Counter in MapReduce?
What is Reducer in MapReduce?
what happens in textinformat ?
What is an identity mapper and identity reducer?
Clarify what combiners are and when you should utilize a combiner in a map reduce job?
What is Output Format in MapReduce?
It can be possible that a Job has 0 reducers?
how can you debug Hadoop code?
How to submit extra files(jars, static files) for MapReduce job during runtime?
What does conf.setmapper class do?
How do reducers communicate with each other?
Explain what does the conf.setmapper class do?
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)