Which language is more suitable for text analytics? R or python?
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Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
Mention what are the three modes in which hadoop can be run?
Why is Data Block size set to 128 MB in Hadoop?
What does hadoop-env.sh do?
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 does the mapred.job.tracker command do?
Mention what does the text input format do?
What is a Backup node in Hadoop?
What are the major differences between Hadoop 2 and Hadoop 3?
Can you explain hadoop streaming?
Give a brief overview of Hadoop history?
Explain what is sequencefileinputformat?
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