On Jun 8, 2012, at 12:35 PM, Galder Zamarreño wrote: > > On Jun 8, 2012, at 12:26 PM, Galder Zamarreño wrote: > >> Hi all, >> >> Re: https://community.jboss.org/message/739399#739399 >> >> This guy's using a combo of @EmbeddedId and @Embeddable in the tests his >> provided, and this is resulting in cache key serialized payloads differing >> for identical instances. Even in between runs, the last bit of the payload >> varies. This obviously results in keys not being found in the cache.
The problem seems to come from here: CacheKey -> org.hibernate.type.TypeFactory$TypeScopeImpl -> SessionFactoryImpl -> uuid So, each CacheKey is this case contains the UUID of the session factory, and since each node's session factories are different, the UUIDs will be too, which results in different payloads for the same key. This would appear to be a bug in the Hibernate side? 2LC providers do nothing about CacheKey, they just know that an object needs to be serialized. Btw, that a simple key like the one in the example provided generates 3KB of byte[] sounds pretty excessive... >> >> Apart from this issue which I'm currently investigating, I've spotted that >> when the CacheKey is marshalled, it also marshalls the entity as part of the >> key. That sounds rather inefficient, so is this guy: > > ^ I think this statement is wrong, bear with me while I confirm. ^ I was wrong with this. > >> >> a) using the right pattenr for @EmbeddedId + @Embeddable >> b) is Hibernate behaving the right way here by having a reference to the >> entity from cache key >> >> Cheers, >> -- >> Galder Zamarreño >> Sr. Software Engineer >> Infinispan, JBoss Cache >> _______________________________________________ >> hibernate-dev mailing list >> hibernate-dev@lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/hibernate-dev > > -- > Galder Zamarreño > Sr. Software Engineer > Infinispan, JBoss Cache > > > _______________________________________________ > hibernate-dev mailing list > hibernate-dev@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/hibernate-dev -- Galder Zamarreño Sr. Software Engineer Infinispan, JBoss Cache _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
