List out the different stream grouping in apache storm?
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How to add/delete a Node to the existing cluster?
Explain the core methods of the reducer?
List of the some best tools that can be useful for data-analysis?
What is the default replication factor in Hadoop and how will you change it?
If we want to copy 10 blocks from one machine to another, but another machine can copy only 8.5 blocks, can the blocks be broken at the time of replication?
Mention what job does the conf class do?
what is next step after mapper or maptask?
How to create hadoop archive?
What is the difference between an inputsplit and a block?
How is security achieved in Hadoop?
What is difference between reducer and combiner?
What is the default replication factor and how will you change it?
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