What is Disk Balancer in Apache Hadoop?
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What are the default configuration files that are used in hadoop?
What is a speculative execution in Apache Hadoop MapReduce?
Which files are used by the startup and shutdown commands?
Explain why do we need hadoop?
Is client the end user in HDFS?
What is the function of ApplicationMaster?
What should be the ideal replication factor in Hadoop Cluster?
How to use Apache Zookeeper command line interface?
Explain Erasure Coding in Apache Hadoop?
What is the jobtracker and what it performs in a hadoop cluster?
How the HDFS Blocks are replicated?
Where is the Mapper Output intermediate kay-value data stored ?
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