Explain the Single point of Failure in Hadoop?
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What is job tracker role in hadoop?
Why do we need Hadoop?
How to create the directory when name node is in safe mode?
What does hadoop-env.sh do?
What is Mapper? How can we compress Mapper output in Hadoop?
Tell me some major benefits of Hadoop?
Explain how can you check whether namenode is working beside using the jps command?
List out the some common problems faced by data analyst?
Explain what is speculative execution?
What sorts of actions does the job tracker process perform?
In hadoop_pid_dir, what does pid stands for?
Mention what are the most common input formats defined in hadoop?
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