[SPARK-38541] Upgrade netty to 4.1.75

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.4.0
• Component/s: Build
• Assignee: Yang Jie
• Reporter: Yang Jie
• Created: 13/Mar/22 10:16
• Updated: 19/Mar/22 13:55
• Resolved: 19/Mar/22 13:55

Description

The release notes as follows:

• https://netty.io/news/2022/03/10/4-1-75-Final.html

 

There are 2 import change of this version:

• Reduce the default PooledByteBufAllocator chunk size from 16 MiB to 4 MiB
• Change default of io.netty.allocator.useCacheForAllThreads to false

 

Both of these changes are to reduce memory-overhead

 

Issue Links

• links to: [Github] Pull Request #35835 (LuciferYang)
• links to: [Github] Pull Request #35835 (LuciferYang)