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If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
422Post New Hadoop General Questions
How would you check whether your NameNode is working or not?
Specify what the information segments utilized by hadoop are?
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?
Why slaves limited to 4000 in hadoop version 1?
Mention how many inputsplits is made by a hadoop framework?
Does hadoop follows the unix pattern?
Explain what is a sequence file in hadoop?
Explain what is jobtracker in hadoop? What are the actions followed by hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
What does the high availability of a name-node means?
How often DataNode send heartbeat to NameNode in Hadoop?
What is throughput in Hadoop?
What is the most widely recognized info formats characterized in hadoop?
How job tracker schedules an assignment?
How can we create a hadoop cluster from scratch?
