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From Allen Wittenauer ...@yahoo-inc.com>
Subject Re: Making sure the tmp directory is cleaned?
Date Mon, 22 Jun 2009 20:41:33 GMT

On 6/22/09 12:15 PM, "Qin Gao" <qing@cs.cmu.edu> wrote:
> Do you know if the tmp directory on every map/reduce task will be deleted
> automatically after the map task finishes or will do I have to delete them?
> I mean the tmp directory that automatically created by on current directory.

Past experience says that users will find writable space on nodes and fill
it, regardless of what Hadoop may do to try and keep it clean.  It is a good
idea to just wipe those spaces clean during hadoop upgrades and other
planned downtimes.

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