What is a block in HDFS? what is the default size in Hadoop 1 and Hadoop 2? Can we change the block size?
64How to copy a file into HDFS with a different block size to that of existing block size configuration?
38Post New Apache HDFS Hadoop Distributed File System Questions
How is NFS different from HDFS?
What do you mean by the high availability of a namenode? How is it achieved?
How HDFS helps NameNode in scaling in Hadoop?
When NameNode enter in Safe Mode?
What is the throughput? How does hdfs give great throughput?
What is the difference between an hdfs block and input split?
Define hadoop archives?
Why is block size large in Hadoop?
Explain NameNode and DataNode in HDFS?
What is the difference between MapReduce engine and HDFS cluster?
How data or file is read in HDFS?
What is the importance of dfs.namenode.name.dir in HDFS?
How to Delete directory from HDFS?
How does a client read/write data in HDFS?
Can you define a block and block scanner in hdfs?