How do you overwrite replication factor?
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When we send a data to a node, do we allow settling in time, before sending another data to that node?
what if job tracker machine is down?
Mention how many inputsplits is made by a hadoop framework?
Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?
Explain how Hadoop cluster hardware planning and provisioning is done?
How does hadoop achieve fault tolerance?
What is a rack?
What is tasktracker in hadoop?
If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
List out the different stream grouping in apache storm?
Do we require two servers for the namenode and the datanodes?
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