Related InterviewSolutions

• Explain About The Different Configuration Files And Where Are They Located.?
• You Increase The Replication Level But Notice That The Data Is Under Replicated. What Could Have Gone Wrong?
• How Can You Add And Remove Nodes From The Hadoop Cluster?
• If Hadoop Spawns 100 Tasks For A Job And One Of The Job Fails. What Does Hadoop Do?
• How Often Should The Namenode Be Reformatted?
• What Is The Best Practice To Deploy A Secondary Namenode?
• The Mapred.output.compress Property Is Set To True, To Make Sure That All Output Files Are Compressed For Efficient Space Usage On The Hadoop Cluster. In Case Under A Particular Condition If A Cluster User Does Not Require Compressed Data For A Job. What Would You Suggest That He Do?
• What Are The Network Requirements To Run Hadoop?
• Which Is The Best Operating System To Run Hadoop?
• Is It Possible To Copy Files Across Multiple Clusters? If Yes, How Can You Accomplish This?