Dave Myron ( https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5d8e891... ) *commented* on HHH-15500 ( https://hibernate.atlassian.net/browse/HHH-15500?atlOrigin=eyJpIjoiNTY3Nz... ) Re: Cache key is huge since migration to 6 ( https://hibernate.atlassian.net/browse/HHH-15500?atlOrigin=eyJpIjoiNTY3Nz... ) When we were on 4.3 we were using FstCodec with Redisson so the mechanism for the generation of keys was slightly different (though I think both FstCodec and SnappyCodecV2 produce a binary key so should be roughly comparable for our purposes here). A sample key for the same Entity from 4.3: \x00\x01 org.hibernate.cache.spi.CacheKey\x81M\xbb\x04\x00\xf7\x80\x13'\xfcFcom.truenorthservice.nydus.hibernate.entities.SubscriberAttributeScope\xff\x00\x01\x1eorg.hibernate.type.IntegerType\x00\x018org.hibernate.type.descriptor.java.IntegerTypeDescriptor\xfd\x00\x11java.lang.Integer\x00\x018org.hibernate.internal.util.compare.ComparableComparator\x00\x00\x01:org.hibernate.type.descriptor.java.ImmutableMutabilityPlan\x00\x00\xfd\x13\x02\x80\xff\x00\xfa\x015org.hibernate.metamodel.relational.Size$LobMultiplier\x00\x00\x00\x017org.hibernate.type.descriptor.sql.IntegerTypeDescriptor\x00\xfb*\x01\x04\x00\x00\x00\x00\x00 That’s 625 characters instead of 2,023 as in the example. ( https://hibernate.atlassian.net/browse/HHH-15500#add-comment?atlOrigin=ey... ) Add Comment ( https://hibernate.atlassian.net/browse/HHH-15500#add-comment?atlOrigin=ey... ) Get Jira notifications on your phone! Download the Jira Cloud app for Android ( https://play.google.com/store/apps/details?id=com.atlassian.android.jira.... ) or iOS ( https://itunes.apple.com/app/apple-store/id1006972087?pt=696495&ct=Em... ) This message was sent by Atlassian Jira (v1001.0.0-SNAPSHOT#100207- sha1:c85b1ee )