Is hadoop a database?
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What is the full form of fsck?
How is HDFS fault tolerant?
Whats is distributed cache in hadoop?
What is the difference between hadoop and other data processing tools?
How the Client communicates with HDFS?
What is structured data?
What is the problem with HDFS and streaming data like logs
What is Writable & WritableComparable interface?
What does job conf class do?
What are the Basics of Hadoop?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What if a namenode has no data?