What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
What are common spark ecosystems?
What is the prerequisite for Apache Hive installation?
Can you explain spark graphx?
What are the types of transformation in RDD in Apache Spark?
Have you ever used Counters in Hadoop. Give us an example scenario?
Which java class handles the Input record encoding into files which store the tables in Hive?
How to create hadoop archive?
What are the exact differences between reduce and fold operation in Spark?
How will you convert the string ’51.2’ to a float value in the price column?
Name the filter which accepts the page size as the parameter in hbase?
What are the core api’s of kafka?
List the configuration parameters that have to be specified when running a MapReduce job.
What kind of datawarehouse application is suitable for Hive?
What is the role of the secondary namenode?