Explain how can you check whether namenode is working beside using the jps command?
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What are the important features of hadoop?
What is the command to change the replication factor ?
What are the features of Pseudo mode?
Ideally what should be the block size in hadoop?
Are there any special requirements for namenode?
What is Erasure Coding in Hadoop?
Is it possible to provide multiple input to Hadoop? If yes then how can you give multiple directories as input to the Hadoop job?
What webdav is in hadoop?
What are the benefits yarn brings in to hadoop?
Can you explain the common input formats in hadoop?
What is the difference between a hadoop database and relational database?
List of some best tools that can be useful for data-analysis?
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