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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/03/18 09:20:06 UTC
[GitHub] [spark] wangjiaochun opened a new pull request #24127:
[SPARK-27186][CORE] optimize sortshuffle write
wangjiaochun opened a new pull request #24127: [SPARK-27186][CORE] optimize sortshuffle write
URL: https://github.com/apache/spark/pull/24127
## What changes were proposed in this pull request?
If the SortShuffleWriter.write method records is empty, it should be return directly and no need to keep runningļ¼refer to the process of BypassMergeSortShuffleWriter.write. Here are the benefits of create Instance ExternalSorter and tmp file.
## How was this patch tested?
Existing tests
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