How many instances of JobTracker can run on a Hadoop Cluser?
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Whats is distributed cache in hadoop?
What is your favourite tool in the hadoop ecosystem?
Command to format the NameNode?
Which command is used for the retrieval of the status of daemons running the hadoop cluster?
What is a Record Reader in hadoop?
Is secondary namenode a substitute to the namenode?
what factors the block size takes before creation?
How does an hadoop application look like or their basic components?
What is a Secondary Namenode? Is it a substitute to the Namenode?
Can you give us some more details about ssh communication between masters and the slaves?
What is inputsplit in hadoop? Explain.
How to enable/configure the compression of map output data in hadoop?