What is a block and block scanner in HDFS?
Is hadoop a memory?
Virtual Box & Ubuntu Installation?
How to enable recycle bin or trash in hadoop?
What is oozie in hadoop?
Does the hdfs client decide the input split or namenode?
What if a namenode has no data?
Explain the core components of hadoop?
What is a heartbeat in HDFS?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
did you maintain the hadoop cluster in-house or used hadoop in the cloud?
How is security achieved in Apache Hadoop?
What is a speculative execution in Apache Hadoop MapReduce?