What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?45
how is data partitioned before it is sent to the reducer if no custom partitioner is defined in Hadoop?39
How businesses could be benefitted with Big Data?
Differentiate between Pig Latin and Pig Engine?
Explain about the different types of partitioning in Hive?
Where is the Mapper Output stored?
State the usage of 'filters', 'group' , 'orderBy', 'distinct' keywords in pig scripts?
What is Hive Present Version ?
How we can take Hadoop out of Safe Mode?
explain Metadata in Namenode?
what is the default replication factor in HDFS?
What are watches?
What are the different types of tombstone markers in HBase for deletion?
Do you need to install Spark on all nodes of Yarn cluster while running Spark on Yarn?
Does Hadoop requires RAID?
Is client the end user in HDFS?
For a job in Hadoop, is it possible to change the number of mappers to be created?