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What is Hadoop HDFS – Hadoop Distributed File System?
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Answer / Vikas Kumar Verma
Hadoop Distributed File System (HDFS) is a distributed file system designed to run on commodity hardware. It provides high throughput access to application data and stores files in a large number of replicas across clusters of machines.
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Distinguish HDFS Block and Input Unit?
What is a rack awareness algorithm and why is it used in hadoop?
how does hdfs ensure data integrity of data blocks stored in hadoop hdfs?
What do you mean by the High Availability of a NameNode in Hadoop HDFS?
Who divides the file into Block while storing inside hdfs in hadoop?
How data or a file is written into hdfs?
What is the difference between Input Split and an HDFS Block?
Can you change the block size of hdfs files?
What do you mean by the high availability of a namenode?
What do you mean by meta data in hdfs? List the files associated with metadata.
What is a namenode in hadoop?
What are the different file permissions in the HDFS for files or directory levels?
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