What is distributed Cache in MapReduce?
Posted On: Mar 02, 2020
The Distributed cache in the Hadoop MapReduce framework is used to cache the files that are needed by the applications.
It is used to cache read-only text files, archives, jar files, etc. The cached file in the MapReduce distributed cache is available on each data node where the map/reduce tasks are running. Distributed cache provides many benefits such as storing complex data, eliminating a single point of failure, and ensuring data consistency.
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