Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
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List of the some best tools that can be useful for data-analysis?
What is difference between reducer and combiner?
What is Federation?
What sorts of actions does the job tracker process perform?
Can we create a hadoop cluster from scratch?
Explain is it possible to search for files using wildcards?
What does hadoop-metrics.properties file do?
What is TaskTracker?
Is Namenode machine same as DataNode machine as in terms of hardware in Hadoop?
Define “speculative execution” in hadoop?
Why can we not create directory /user/dataflair/inpdata001 when name node is in safe mode?
Which operating system(s) are supported for production hadoop deployment?
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