What is hdfs block size?
How hdfs is different from traditional file systems?
How is hdfs block size different from traditional file system block size?
How data or a file is written into hdfs?
What is a namenode in hadoop?
What is secondary namenode?
What do you mean by meta data in hdfs? List the files associated with metadata.
Explain the hdfs architecture and list the various hdfs daemons in hdfs cluster?
Can you modify the file present in hdfs?
Define data integrity?
What do you mean by the high availability of a namenode? How is it achieved?
Hdfs stores data using commodity hardware which has higher chances of failures. So, how hdfs ensures the fault tolerance capability of the system?
Define hadoop archives?
What is secondary namenode? Is it a substitute or back up node for the namenode?
What is the command for archiving a group of files in hdfs.
