Ideally what should be the block size in hadoop?
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How ordering in hdfs is finished?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
What do you understand by a closure in scala?
What is TaskTracker?
What is the default replication factor in Hadoop and how will you change it?
Is nosql follow relational db model?
Mention what is data cleansing?
Give examples of some companies that are using Hadoop structure?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
What are the main components in Hadoop Eco-System and what are their functions ?
What does the mapred.job.tracker command do?
What is the non dfs used?
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