What are the additional benefits YARN brings in to Hadoop?
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What are watches?
Does the hdfs client decide the input split or namenode?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
What are different hdfs dfs shell commands to perform copy operation?
What is safe mode in Hadoop?
How do you define "block" in HDFS?
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
Explain Erasure Coding in Apache Hadoop?
Which are the three main hdfs-site.xml properties?
How to configure hadoop to reuse JVM for mappers?
What is the InputFormat ?
What do you know by storage and compute node?
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