List of the some best tools that can be useful for data-analysis?
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Whats the default port that jobtrackers listens ?
What is the difference between TextInputFormat and KeyValueInputFormat class?
What are the side data distribution techniques?
We have already sql then why nosql?
Web-ui shows that half of the datanodes are in decommissioning mode. What does that mean? Is it safe to remove those nodes from the network?
If DataNode increases, then do we need to upgrade NameNode?
When should be hadoop archive create?
Explain what is namenode in hadoop?
What is the hadoop-core configuration?
Is hadoop still in demand?
If DataNode increases, then do we need to upgrade NameNode in Hadoop?
What are the modes in which Hadoop run?
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Hadoop General (407)