What is throughput in Hadoop?
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What is the role of the secondary namenode?
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?
For using hadoop list the network requirements?
Explain what is sequencefileinputformat?
How does speculative execution work in Hadoop?
What is a Heartbeat in Hadoop?
What are the important modes of hadoop?
Explain map-only job?
Which object can be used to get the progress of a particular job
Have you ever used counters in hadoop?
What is JobTracker?
What is difference between reducer and combiner?
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