[GitHub] [spark] beliefer opened a new pull request #26204: [SPARK-29548][Core] Redirect system print stream to log4j and improve robustness

[GitBox <gi...@apache.org>]

beliefer opened a new pull request #26204: [SPARK-29548][Core] Redirect system print stream to log4j and improve robustness
URL: https://github.com/apache/spark/pull/26204
 
 
   ### What changes were proposed in this pull request?
   In a production environment, user behavior is highly random and uncertain.
   For example: Users use `System.out` or `System.err` to print information.
   But the system print stream may cause some trouble, such as: the disk file is too large.
   
   In my production environment, it causes the disk to be full and let [NodeManager] works not fine.
   
   A method of threat is to forbid the use of `System.out` or `System.err`. But unfriendly to the users.
   A better method is to redirecting the system print stream to `Log4j` and Spark can take advantage of `Log4j`'s split log.
   
   
   ### Why are the changes needed?
   Improve robustness about system `PrintStream`.
   
   
   ### Does this PR introduce any user-facing change?
   No
   
   
   ### How was this patch tested?
   Exists UT.
   

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