What are the two main components of ResourceManager?
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What are the main components of a Hadoop Application?
Where is the Mapper Output intermediate kay-value data stored ?
What is Apache Hadoop?
What happens to a namenode, when job tracker is down?
What is the Use of SSH in Hadoop ?
Explain the core components of hadoop?
Define a datanode?
What is the use of Combiner?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What is the heartbeat used for?
Can Hadoop be compared to NOSQL database like Cassandra?
Does Hadoop requires RAID?