What problems can be addressed by using Zookeeper?
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What infrastructure do we need to process 100 TB data using Hadoop?
Why is Apache Spark faster than Apache Hadoop?
What is the best hardware configuration to run Hadoop?
What is a checkpoint?
What are the Basics of Hadoop?
How to Administering Hadoop?
What is Safemode in Apache Hadoop?
what is the default replication factor in HDFS?
On what basis data will be stored on a rack?
What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?
How to change replication factor of files already stored in HDFS?
What Mapper does?
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