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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/12/25 17:07:14 UTC

[GitHub] [spark] bjornjorgensen commented on pull request #39196: [SPARK-41695][BUILD][3.3] Upgrade netty to 4.1.86.Final

bjornjorgensen commented on PR #39196:
URL: https://github.com/apache/spark/pull/39196#issuecomment-1364710814

   https://github.com/apache/spark/commit/56086cb6c6df241e811be96cdf8bc6bc713b649d
   
   ### Does this PR introduce _any_ user-facing change?
   Yes, all changes are caused by the change of Netty.
   If the user wants to maintain the same behavior as the previous version, the user needs to make the following configuration:
   
   - add `-Dio.netty.allocator.useCacheForAllThreads=true` to enable `useCacheForAllThreads `
   - add `-Dio.netty.allocator.maxOrder=11` to keep the chunk size of `PooledByteBufAllocator` to 16m


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