eric-maynard commented on code in PR #490:
URL: https://github.com/apache/polaris/pull/490#discussion_r1861188145
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polaris-core/src/main/java/org/apache/polaris/core/persistence/cache/EntityCache.java:
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@@ -71,12 +71,13 @@ public EntityCache(@NotNull PolarisRemoteCache
polarisRemoteCache) {
};
// use a Caffeine cache to purge entries when those have not been used for
a long time.
- // Assuming 1KB per entry, 100K entries is about 100MB.
this.byId =
Caffeine.newBuilder()
- .maximumSize(100_000) // Set maximum size to 100,000 elements
+ .maximumWeight(100 * EntityWeigher.WEIGHT_PER_MB) // Goal is ~100MB
+ .weigher(EntityWeigher.asWeigher())
.expireAfterAccess(1, TimeUnit.HOURS) // Expire entries after 1
hour of no access
.removalListener(removalListener) // Set the removal listener
+ .softValues() // Account for memory pressure
Review Comment:
The docs seem to say you can do both, WDYM?
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