I'll be interested to hear which software versions are in use (I just asked in the below forum link).
On 06/08/2012 08:01 AM, Galder Zamarreño wrote: > > 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 _______________________________________________ hibernate-dev mailing list hibernate-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/hibernate-dev
