How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
Can we do online transactions(oltp) using hadoop?
What does ‘jps’ command do?
Can Hadoop be compared to NOSQL database like Cassandra?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
Is it necessary to know java to learn hadoop?
Can NameNode and DataNode be a commodity hardware?
What is Input Split in hadoop?
What is output format in hadoop?
Explain the wordcount implementation via hadoop framework ?
What are the limitations of importing RDBMS tables into Hcatalog directly?
Who is a 'user' in HDFS?
What are the characteristics of hadoop framework?