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Posted to github@arrow.apache.org by "lidavidm (via GitHub)" <gi...@apache.org> on 2026/01/08 13:39:56 UTC

Re: [I] Root Allocator doesn't release memory when its closed [arrow-java]

lidavidm commented on issue #950:
URL: https://github.com/apache/arrow-java/issues/950#issuecomment-3723927601

   Which allocator implementation are you using?
   
   I don't think we can make any guarantees about RSS; that's up to the JVM (IIRC, Unsafe boils down to malloc, I don't remember what Netty does but I assume the same). I see some OpenJDK versions will malloc_trim on GC; which JDK are you using? There's an additional complicating factor; you're using JNI Arrow libraries so there's Arrow's allocator to account for as well.


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