[GitHub] [spark] warrenzhu25 commented on pull request #41761: [SPARK-43828][CORE] Add config to control whether close idle connections

["warrenzhu25 (via GitHub)" <gi...@apache.org>]

warrenzhu25 commented on PR #41761:
URL: https://github.com/apache/spark/pull/41761#issuecomment-1616228054

   > QQ: Why dont we want to close idle connections ?
   
   The purpose of close idle connections is to reduce overhead of maintaining too many idle connections. But in some cases, we prefer keeping idle connection (when number of total connections is small), instead of having cost of creating new connections. 


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