In hadoop_pid_dir, what does pid stands for?
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What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
Are job tracker and task trackers present in separate machines?
Is nosql follow relational db model?
Can you define udf?
Mention what daemons run on a master node and slave nodes?
What is streaming access?
What is Erasure Coding in Hadoop?
Which port does SSH work on?
How can you set an arbitrary number of Reducers to be created for a job in Hadoop?
Clarify what is sqoop in hadoop?
Explain InputSplit in Hadoop?
Clarify what is sequence file input format?
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