Best Practices And Optimization Of Hadoop - Study Mode

[#121] What is a common optimization technique to improve Hadoop MapReduce performance?
Correct Answer

(A) Increase block size

[#122] Which compression codec is commonly used for optimizing storage in Hadoop?
Correct Answer

(B) Snappy

[#123] What is the purpose of Hadoop speculative execution?
Correct Answer

(C) To mitigate the impact of slow-running tasks

[#124] How can data skew in a Hadoop job be addressed for optimization?
Correct Answer

(A) Increase the number of reducers

[#125] Which Hadoop component is responsible for resource negotiation between the client and the Hadoop cluster?
Correct Answer

(A) ResourceManager