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From "jin xing (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-21342) Fix DownloadCallback to work well with RetryingBlockFetcher
Date Fri, 07 Jul 2017 15:34:00 GMT
jin xing created SPARK-21342:
--------------------------------

             Summary: Fix DownloadCallback to work well with RetryingBlockFetcher
                 Key: SPARK-21342
                 URL: https://issues.apache.org/jira/browse/SPARK-21342
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 2.1.1
            Reporter: jin xing


When {{RetryingBlockFetcher}} retries fetching blocks. There could be two {{DownloadCallbacks}}
download the same content to the same target file. It could cause {{ShuffleBlockFetcherIterator}}
reading a partial result.



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