Un-Answered Questions { Big Data }

What is crontab? Explain with suitable example?

662


What is the difference between Hadoop and Traditional RDBMS?

658


What is Partioner in hadoop? Where does it run

619


Does Hadoop requires RAID?

647


What is the purpose of DataNode block scanner?

658


What is a checkpoint?

657


Did you ever ran into a lop sided job that resulted in out of memory error

920


What is the communication channel between client and namenode/datanode?

1402


What are the different operational commands in HBase at record level and table level?

307


What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?

895


What is the Job interface in MapReduce framework?

629


What is the problem with HDFS and streaming data like logs

665


What is the Use of SSH in Hadoop ?

635


What infrastructure do we need to process 100 TB data using Hadoop?

731


What is the difference between a Hadoop and Relational Database and Nosql?

702