How Hive organize the data?

446

How can we drop a table in HCatalog?

5

What is the difference between Apache Pig and Hive?

309

How to iterate all rows in ColumnFamily?

60

Explain what combiners are and when you should use a combiner in a mapreduce job?

346

Explain the process that overwrites the replication factors in HDFS?

40

What is Apache Cassandra?

71

Explain HCatInputFormat and HCatOutputFormat?

5

What is Cassandra Data Modelling ?

59

Explain partitions?

191

Apache Flume support third-party plugins also?

63

What do you mean by snitch?

48

While starting hadoop services, datanode service is not running?

240

What are the fundamental key structures of HBase?

149

Mention when to use Map reduce mode?

350