Deegue created MAPREDUCE-7312:
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Summary: Add cache switch of MapReduce History Server
Key: MAPREDUCE-7312
URL: https://issues.apache.org/jira/browse/MAPREDUCE-7312
Project: Hadoop Map/Reduce
Issue Type: Improvement
Reporter: Deegue
History Server scans `done` directory while initializing. If there are millions
of application files to cache, it will become a time demanding action.
In our cluster, it'll be 4+ hours before the initialization is done.
We added a switch to control whether doing initialized cache or not.
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