danny0405 commented on code in PR #18967:
URL: https://github.com/apache/hudi/pull/18967#discussion_r3401670360
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hudi-common/src/main/java/org/apache/hudi/common/schema/HoodieSchemaCache.java:
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@@ -36,6 +37,14 @@ public class HoodieSchemaCache {
private static final LoadingCache<HoodieSchema, HoodieSchema> SCHEMA_CACHE =
Caffeine.newBuilder().weakValues().maximumSize(1024).build(k -> k);
+ // Avro-schema-keyed view onto the cache above for per-record call sites:
weakKeys gives
+ // identity-based lookups (records of one file share the same Schema
instance), so the hot path
+ // is a single cache hit with no wrapper allocation or type dispatch. Misses
convert and then
+ // value-intern, so equal but distinct Avro schema instances still converge
on one canonical
+ // HoodieSchema.
+ private static final LoadingCache<Schema, HoodieSchema> AVRO_SCHEMA_CACHE =
Review Comment:
can we add a new cache class instead
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