Can we create a hadoop cluster from scratch?
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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?
What is a commodity hardware? Does commodity hardware include RAM?
Can we use windows for hadoop?
Define a record reader?
What is namenode?
What is the best practice to deploy the secondary name node?
Why slaves limited to 4000 in hadoop version 1?
How job tracker schedules an assignment?
What are the most common InputFormats in Hadoop?
How can you set an arbitrary number of Reducers to be created for a job in Hadoop?
Can we write map reduce program in other than java programming language. How?
Whats the default port that jobtrackers listens ?
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