How does master slave architecture in the hadoop?
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What is the difference between hadoop and other data processing tools?
What are the problems with Hadoop 1.0?
What is a heartbeat in HDFS?
What is the InputFormat ?
Define fault tolerance?
What are the different types of Znodes?
What are different hdfs dfs shell commands to perform copy operation?
what are the steps involved in decommissioning removing
What is high availability in hadoop?
Do we need to give a password, even if the key is added in ssh?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
Can NameNode and DataNode be a commodity hardware?
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