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Posted to dev@hive.apache.org by GitBox <gi...@apache.org> on 2019/02/26 22:01:09 UTC

[GitHub] vineetgarg02 opened a new pull request #552: Hive 21279

vineetgarg02 opened a new pull request #552: Hive 21279
URL: https://github.com/apache/hive/pull/552
 
 
   This patch avoids rename/move (to tmpPath) during File Sink operation and creates a list of file to pass it over to Fetch operator to fetch from. In context of cloud file system file I/Os are expensive so avoiding even a single operation provides sufficient boost. Internal experiments show more than 50% boost in fetch result performance.

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