apache/spark — pull request #3828 by lianhuiwang (2014-12-29 12:43:22+00:00)
Title: [SPARK-4994][network]Cleanup removed executors' ShuffleInfo  in yarn shuffle service

when the application is completed, yarn's nodemanager can remove application's local-dirs.but all executors' metadata of completed application havenot be removed. now it let yarn ShuffleService to have much more memory to store Executors' ShuffleInfo. so these metadata need to be removed.