He-Pin commented on PR #25866:
URL: https://github.com/apache/flink/pull/25866#issuecomment-2569115685

   @XComp So it is better to turn on `-Dio.netty.leakDetection.level=PARANOID` 
to see who holds the buffers.
   and turn on `-Dio.netty.allocator.type=unpooled` too, then all ByteBuf lives 
in memory.
   
   @normanmaurer is there any suggestion, thanks.


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