Which are the two types of 'writes' in HDFS?
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Explain the core components of hadoop?
What is formatting of the dfs?
How can we change the split size if our commodity hardware has less storage space?
What is HDFS Block size? How is it different from traditional file system block size?
Explain the wordcount implementation via hadoop framework ?
What are the different methods to run Spark over Apache Hadoop?
How does a namenode handle the failure of the data nodes?
What's the best way to copy files between HDFS clusters?
How would you use Map/Reduce to split a very large graph into smaller pieces and parallelize the computation of edges according to the fast/dynamic change of data?
What is partioner in hadoop? Where does it run,mapper or reducer?
How many instances of a jobtracker run on hadoop cluster?
Define a namenode?