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The default size of Distributed Cache for Hadoop is 10 GB but it can be configured using "local.cache.size" in core-site.xml or mapred-site.xml. It's default location is  /tmp/hadoop-root/mapred/local/archive.

How often this cleanup of cache ( if needed) is triggered. By default every minute but you can change it using the property "mapreduce.tasktracker.distributedcache.checkperiod"

Rishi Yadav
04/18/2013 at 19:50
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