Explain how indexing in hdfs is done?
Answer / Raviendra Maurya
HDFS does not provide built-in support for indexing. However, Hadoop MapReduce can be used to create indexes on data stored within HDFS.
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Explain the process that overwrites the replication factors in HDFS?
How can one copy a file into HDFS with a different block size to that of existing block size configuration?
Can you define a block and block scanner in hdfs?
Replication causes data redundancy and consume a lot of space, then why is it pursued in hdfs?
What is active and passive NameNode in HDFS?
How to Delete file from HDFS?
Can multiple clients write into an HDFS file concurrently in hadoop?
Does HDFS allow a client to read a file which is already opened for writing?
File permissions in HDFS?
Mention what is the difference between hdfs and nas?
How to transfer data from Hive to HDFS?
Write command to copy a file from HDFS to linux(local).
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