How does NameNode tackle DataNode failures?
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Explain InputFormat?
What are the limitations of importing RDBMS tables into Hcatalog directly?
What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?
What exactly is hadoop?
How to configure hadoop to reuse JVM for mappers?
How to enable trash/recycle bin in hadoop?
How will you make changes to the default configuration files?
What is Apache Hadoop?
What problems can be addressed by using Zookeeper?
How to resolve ioexception: cannot create directory, while formatting namenode in hadoop?
How can I install Cloudera VM in my system?
How to change from su to cloudera?
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