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      Flink now uses Log4j2 by default.

      Users who wish to revert back to Log4j1 can find instructions to do so in the logging documentation.
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      Flink now uses Log4j2 by default. Users who wish to revert back to Log4j1 can find instructions to do so in the logging documentation.

    Description

      Log4j 1.x is outdated and has multiple problems:

      • No dynamic adjustments of Log Level
      • Problems with newer Java Versions
      • Not actively developed any more

      Switching to Log4J 2 by default would solve this.

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            master:
            61bb4cb16196729d63bf44071bb2aef63a8b5457
            e7db6b240572d08b549ea4ddb7b7b9ba719f7221
            ee7fb5e40afb10346a3c606472e188431fedf1f7

            chesnay Chesnay Schepler added a comment - master: 61bb4cb16196729d63bf44071bb2aef63a8b5457 e7db6b240572d08b549ea4ddb7b7b9ba719f7221 ee7fb5e40afb10346a3c606472e188431fedf1f7

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              chesnay Chesnay Schepler
              sewen Stephan Ewen
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