See this thread http://search-hadoop.com/m/LgpTk2nioaA

On Wed, Nov 5, 2014 at 11:40 PM, Bharath Kumar <bharathdcs@gmail.com> wrote:
the partition defined in mapred.local.dir are getting filled up, i always thought it was cleared automatically correct me if i am wrong . Can i manually delete the contents

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Warm Regards,
                         Bharath Kumar