What is Partioner in hadoop? Where does it run
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Explain InputFormat?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What is the InputFormat ?
How does master slave architecture in the hadoop?
Which files are used by the startup and shutdown commands?
What are the different types of Znodes?
What is the heartbeat used for?
What are the main components of a Hadoop Application?
what should be the ideal replication factor in hadoop?
What are combiners and its purpose?
What is the default block size in hdfs?
What is Apache Hadoop? Why is Hadoop essential for every Big Data application?