[core] Support off-heap lookup cache - #8867
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JingsongLi
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July 27, 2026 16:25
leaves12138
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Looks good. The off-heap copy path, shared data/index cache close path, and lifecycle behavior are sound. CacheManagerTest passes locally.
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What changed
CacheManager.MemorySegments.CacheManagercloseable so invalidating the caches releases retained segments.Why
Local lookup users backed by managed memory need the block cache to reside outside the JVM heap. The existing cache always wrapped heap byte arrays and had no explicit lifecycle hook.
Validation
mvn -q -pl paimon-common -Pfast-build -DwildcardSuites=none -Dtest=CacheManagerTest testmvn -q -pl paimon-common spotless:check -DskipTestsmvn -q -pl paimon-common -DskipTests compile