Rack awareness of Namenode?
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what should be the ideal replication factor in hadoop?
What Mapper does?
What is hbase in hadoop?
What are the two main components of ResourceManager?
What are active and passive "NameNodes"?
What are the port numbers of namenode, job tracker and task tracker?
On What concept the Hadoop framework works?
What is the difference between rdbms and hadoop?
Can Apache Kafka be used without Zookeeper?
What is compute and Storage nodes?
What are channel selectors?
Define a commodity hardware? Does commodity hardware include ram?