How can one write custom record reader?
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What are the major differences between Hadoop 2 and Hadoop 3?
What is Reducer in Hadoop?
Can we create a hadoop cluster from scratch?
Doesn’t google have its very own version of dfs?
What are the side effects of not running a secondary name node?
Explain map-only job?
How many InputSplits will be made by hadoop framework?
Why is Data Block size set to 128 MB in Hadoop?
Ideally what should be the block size in hadoop?
What type of data hadoop can handle ?
If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
How can we create a hadoop cluster from scratch?
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