How you can contact your client everyday ?
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What does the command mapred.job.tracker do?
Can NameNode and DataNode be a commodity hardware?
How does NameNode tackle DataNode failures?
What happens to a NameNode that has no data?
What is Apache Hadoop YARN?
What is zookeeper in hadoop?
What is a Combiner?
Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?
What is safe mode in Hadoop?
Explain the shuffle?
What is Your Cluster size ?
What is hbase in hadoop?