Change upload strategy for ads-df-pipes so that it creates a checksum of the underlying executable and then uploads the ads-df-pipes file with the checksum as an extension to a globally visible spot in HDFS.  The model of having every job upload a private copy of ads-df-pipes appears to put too much pressure on task trackers as they manage the distributed cache.  We have been seen lots of tasktracker failures since moving to the per-job upload policy.
Change upload strategy for ads-df-pipes so that it creates a checksum of the underlying executable and then uploads the ads-df-pipes file with the checksum as an extension to a globally visible spot in HDFS.  The model of having every job upload a private copy of ads-df-pipes appears to put too much pressure on task trackers as they manage the distributed cache.  We have been seen lots of tasktracker failures since moving to the per-job upload policy.

akamai/trecul,akamai/trecul,akamai/trecul,akamai/trecul