What are the different composite keys in Cassandra?
Explain the features of fully distributed mode?
when to choose “internal table” and “external table” in hive?
How is 0xdata's h2o different from apache mahout ?
What do you mean by metadata in HDFS? Where is it stored in Hadoop?
What mechanism does hadoop framework provides to synchronize changes made in distribution cache during runtime of the application?
Differentiate between describe and describe extended?
Tell me about the execution modes of Apache Pig?
What is the difference between mahout and graphlab ?
How to compress mapper output in Hadoop?
Why hive does not store metadata information in hdfs?
While reading data from hbase, from which three places data will be reconciled before returning the value?
Why is Data Block size set to 128 MB in Hadoop?
On what all basis can you differentiate rdd, dataframe, and dataset?
Is a log flume a roller coaster?