Explain combiners.
No Answer is Posted For this Question
Be the First to Post Answer
What are the four essential parameters of a mapper?
What is identity mapper and chain mapper?
Developing a MapReduce Application?
How to create custom key and custom value in MapReduce Job?
What is the input type/format in MapReduce by default?
What happens when a datanode fails ?
Is it possible to rename the output file?
Is it possible to split 100 lines of input as a single split in MapReduce?
How much space will the split occupy in Mapreduce?
What are the four basic parameters of a reducer?
Where the mapper's intermediate data will be stored?
What is sqoop in Hadoop ?
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)