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CCA-500 · Question #14
During the execution of a MapReduce v2 (MRv2) job on YARN, where does the Mapper place the intermediate data of each Map Task?
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Resource Management
Question
During the execution of a MapReduce v2 (MRv2) job on YARN, where does the Mapper place the intermediate data of each Map Task?
Options
- AThe Mapper stores the intermediate data on the node running the Job's ApplicationMaster so that
- BThe Mapper stores the intermediate data in HDFS on the node where the Map tasks ran in the
- CThe Mapper transfers the intermediate data immediately to the reducers as it is generated by the
- DYARN holds the intermediate data in the NodeManager's memory (a container) until it is
- EThe Mapper stores the intermediate data on the underlying filesystem of the local disk in the
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Topics
#intermediate data#Map task output#local filesystem#MapReduce shuffle