How to configure hadoop to reuse JVM for mappers?
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Explain the features of pseudo mode?
How is the distance between two nodes defined in Hadoop?
What is the communication channel between client and namenode/datanode?
Can we do online transactions(oltp) using hadoop?
What Mapper does?
What is Hadoop?
What is the purpose of DataNode block scanner?
How many instances of tasktracker run on a hadoop cluster?
What if rack 2 and datanode fails?
Can hive run without hadoop?
In cloudera there is already a cluster, but if I want to form a cluster on ubuntu can we do it?
How does a namenode handle the failure of the data nodes?
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