what is difference between int and intwritable?
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explain Metadata in Namenode?
How to change Replication Factor For below cases ?
What is a task instance in hadoop? Where does it run?
Explain why do we need hadoop?
What is the jobtracker and what it performs in a hadoop cluster?
What is a speculative execution in Apache Hadoop MapReduce?
How to configure hadoop to reuse JVM for mappers?
What should be the ideal replication factor in Hadoop Cluster?
what are the steps involved in commissioning adding
What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
Can NameNode and DataNode be a commodity hardware?
How would you tackle counting words in several text documents?