What do you think about the speculative execution?
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What is the procedure for namenode recovery?
Doesn’t google have its very own version of dfs?
Explain what happens in text format?
What is the use of context object?
When and how to create hadoop archive?
Explain Hadoop Archives?
What is the command to change the replication factor ?
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
Ideally what should be replication factor in a Hadoop cluster?
What does the mapred.job.tracker command do?
How Big is ‘Big Data’?
Comparison between Secondary NameNode and Checkpoint Node in Hadoop?
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