What role does Apache Hadoop’s distributed cache play?
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What role does Apache Hadoop’s distributed cache play?
Distributed cache, a key utility feature of Hadoop, enhances job performance by caching the files used by applications. Using JobConf settings, an application can specify a file for the cache.
The Hadoop framework copies these files to each node where a task must be run. This is carried out prior to the task’s execution. In addition to zip and jar files, Distributed Cache offers the dissemination of read-only files.