Explain what if rack 2 and datanode fails?
What is the sequencefileinputformat in hadoop?
how would you modify that solution to only count the number of unique words in all the documents?
How can I restart namenode?
What is HDFS - Hadoop Distributed File System?
Mention what is the number of default partitioner in Hadoop?
What is a Record Reader in hadoop?
What do you understand from Node redundancy and is it exist in hadoop cluster?
What is a Secondary Namenode? Is it a substitute to the Namenode?
what factors the block size takes before creation?
what is the default replication factor in HDFS?
Why password is needed in ssh localhost?
Define streaming?