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what is next step after mapper or maptask?
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Can you explain edge nodes in hadoop?
Are job tracker and task trackers present in separate machines?
In which directory hadoop is installed?
Where is hadoop-env.sh file present?
Which scala library is used for functional programming?
Can we deploy job tracker other than name node?
If DataNode increases, then do we need to upgrade NameNode in Hadoop?
What are some typical functions of job tracker in hadoop?
Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?
Ideally what should be replication factor in a Hadoop cluster?
What happen if a datanode loses network connection for a few minutes?
What is the procedure for namenode recovery?
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