[GitHub] [spark] beliefer commented on issue #24671: [MINOR][DOCS]Improve docs about spark.driver.memoryOverhead and spark.executor.memoryOverhead.

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beliefer commented on issue #24671: [MINOR][DOCS]Improve docs about spark.driver.memoryOverhead and spark.executor.memoryOverhead.
URL: https://github.com/apache/spark/pull/24671#issuecomment-494708978
 
 
   > I think the proposed new description is inaccurate because interned strings and native overheads (e.g. Netty direct buffers) aren't allocated _outside the executor process_, per se (since off-heap memory is still in the JVM's own process address space).
   
   Thanks for your review. Yes, I ignored the detail off-heap memory is still in the JVM's own process address space.
   
   

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