How to restart Namenode?
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What alternate way does HDFS provides to recover data in case a Namenode
Are Namenode and job tracker on the same host?
What is a block and block scanner in HDFS?
Why are the number of splits equal to the number of maps?
Can hbase run without hadoop?
What is your favourite tool in the hadoop ecosystem?
how is a file of the size 1 GB uncompressed
What is Schema on Read and Schema on Write?
What is IdentityMapper?
How is the distance between two nodes defined in Hadoop?
What are the main components of a Hadoop Application?
Explain a simple Map/Reduce problem.