How to change the file cached by Distributed Cache?

Distributed Cache in MapReduce can be updated by replacing the file with the new one and changing the pointer location to point to new location and restart the MapReduce job or by appending the values in Distributed cache and restarting the job.

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Can we update the file cached by the Distributed Cache?

No, Distributed Cache tracks the caching with timestamp. Cached file should not be changed during the job execution. Distributed Cache in MapReduce can be updated by replacing the file with the new one and changing the pointer location to point to the

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