What problems can be addressed by using Zookeeper?
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Which are the two types of 'writes' in HDFS?
What if rack 2 and datanode fails?
shouldn't DFS be able to handle large volumes of data already?
What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?
What is zookeeper in hadoop?
What is Rack Awareness in Apache Hadoop?
How is HDFS fault tolerant?
Is client the end user in HDFS?
Is hadoop open source?
How blocks are distributed among all data nodes for a particular chunk of data?
What is Disk Balancer in Apache Hadoop?
What are active and passive "NameNodes"?
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