What is the difference between HDFS block and input split?


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More MapReduce Interview Questions

Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?

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How would you tackle calculating the number of unique visitors for each hour by mining a huge apache log? You can use post processing on the output of the mapreduce job.

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In Map Reduce why map write output to Local Disk instead of HDFS?

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What are mapreduce new and old apis while writing map reduce program?. Explain how it works

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In Hadoop what is InputSplit?

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What is streaming?

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What is the Job interface in MapReduce framework?

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List the network requirements for using Hadoop ?

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what is WebDAV in Hadoop?

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What do you understand by mapreduce?

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What is OutputCommitter?

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What is the best way to copy files between HDFS clusters?

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