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Speed up ConcurrentHashMap#computeIfAbsent of JDK8 #1244

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SteNicholas opened this issue Jan 9, 2025 · 0 comments · May be fixed by #1245
Open

Speed up ConcurrentHashMap#computeIfAbsent of JDK8 #1244

SteNicholas opened this issue Jan 9, 2025 · 0 comments · May be fixed by #1245
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Describe the bug

Comet supports JDK8, which could meet the bug mentioned in JDK-8161372.

Steps to reproduce

Introduce ConcurrentHashMapForJDK8 to check the key existence for speed up, which solves the bug JDK-8161372 to speed up ConcurrentHashMap#computeIfAbsent.

Expected behavior

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Additional context

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@SteNicholas SteNicholas added the bug Something isn't working label Jan 9, 2025
@SteNicholas SteNicholas linked a pull request Jan 9, 2025 that will close this issue
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fix: speed up ConcurrentHashMap#computeIfAbsent of JDK8 SteNicholas/datafusion-comet
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