Hibernate Infinispan 2LC：查询缓存和实体缓存在同一个缓存区域

Question

使用 JBoss Cache，可以将entity 缓存和query 缓存存储在同一个缓存区域中，没有任何问题。但是一旦迁移到wildfly 10（以infinispan为2LC），似乎就有问题了。

我已经为实体提供了缓存区域，如下所示。

@Entity     
@Cacheable  
@Cache(usage=CacheConcurrencyStrategy.READ_ONLY, 
     region="regionA")
public class EntityXYZ{

查询缓存为

 entManager.createQuery(
        "....")
    .setHint("org.hibernate.cacheable", true)
    .setHint("org.hibernate.cacheRegion", "regionA").getResultList();

需要注意的是，上面的query 还包含entities，它们本身被声明为cacheable，并且与regionA 具有相同的缓存区域。

现在执行时，出现此错误。我怀疑这是由于冲突，因为它们存储在同一区域中，并且它试图获取返回另一个对象的对象 id。但是有人可以发光吗。真的是这样吗？并解释更多关于错误的信息？

但同样适用于JBoss 5 的 JBoss 缓存。 infinispan 的处理方式是否不同？还是这是Hibernate 问题？

ERROR [org.jboss.as.ejb3.invocation] (default task-8) WFLYEJB0034: EJB Invocation failed on component... javax.ejb.EJBTransactionRolledbackException: Object [id=4] was not of the specified subclass [ com.abc.xyz] : loaded object was of wrong class class  com.abc.yyy
                at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleInCallerTx(CMTTxInterceptor.java:159)
                at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:256)

     [org.hibernate.event.internal.DefaultLoadEventListener] (default task-8) HHH000327: Error performing load command : org.hibernate.WrongClassException: Object [id=4] was not of the specified subclass [com.abc.xyz] : loaded object was of wrong class class com.abc.yyy

更新：

entitymanager 尝试加载具有 @id 和 int 的 2 个此类（在同一共享缓存 2LC 区域中）的不同调用。正如 Flavius 指出的那样，id=4 似乎在 2 个类之间很常见。

将以下配置添加到 persistence.xml 时，出现启动错误。

persistence.xml

<property name="hibernate.cache.keys_factory" value="default" />

错误

 javax.persistence.PersistenceException: [PersistenceUnit: app-entity] Unable to build Hibernate SessionFactory
            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:179)
            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:121)
            at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:667)
            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:193)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
            at java.lang.Thread.run(Thread.java:745)
            at org.jboss.threads.JBossThread.run(JBossThread.java:320)
    Caused by: javax.persistence.PersistenceException: [PersistenceUnit: app-entity] Unable to build Hibernate SessionFactory
            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:954)
            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:882)
            at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
            at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:161)
            ... 7 more
    Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.spi.CacheImplementor]
            at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:264)
            at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:228)
            at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:207)
            at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:242)
            at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:444)
            at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:879)
            ... 9 more
    Caused by: org.hibernate.boot.registry.selector.spi.StrategySelectionException: Unable to resolve name [default] as strategy [org.hibernate.cache.spi.CacheKeysFactory]
            at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.selectStrategyImplementor(StrategySelectorImpl.java:113)
            at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveDefaultableStrategy(StrategySelectorImpl.java:162)
            at org.hibernate.boot.registry.selector.internal.StrategySelectorImpl.resolveDefaultableStrategy(StrategySelectorImpl.java:126)

更新 2

我已将default 更改为精确的FQN，但它不起作用。错误不正确，因为该类是指定类的实现。

<property name="hibernate.cache.keys_factory" value="org.hibernate.cache.internal.DefaultCacheKeysFactory" />

错误：

Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.spi.CacheImplementor]
        at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:264)
        at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:228)
        at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:207)
        at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:242)
        at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:444)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:879)
        ... 9 more
Caused by: java.lang.ClassCastException: org.hibernate.cache.internal.DefaultCacheKeysFactory cannot be cast to org.hibernate.cache.spi.CacheKeysFactory
        at org.hibernate.cache.infinispan.InfinispanRegionFactory.determineCacheKeysFactory(InfinispanRegionFactory.java:427)
        at org.hibernate.cache.infinispan.InfinispanRegionFactory.start(InfinispanRegionFactory.java:378)
        at org.hibernate.internal.CacheImpl.<init>(CacheImpl.java:49)
        at org.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:28)
        at org.hibernate.engine.spi.CacheInitiator.initiateService(CacheInitiator.java:20)
        at org.hibernate.service.internal.SessionFactoryServiceRegistryImpl.initiateService(SessionFactoryServiceRegistryImpl.java:46)
        at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:254)

Answer 1

查询缓存是字符串索引的，实体缓存是使用原始ID（与EntityXYZ中用@Id标记的字段/方法相同的对象）索引的，所以我想知道id=4上的冲突是如何发生的。

无论如何，对实体和查询使用相同的区域（缓存）并不是一个好主意 - 实体有时需要更复杂的处理来实现 DB 风格的隔离。这种组合在 Hibernate 6 中可能根本不可能。在许多线程中运行压力测试之前，您可能不会遇到问题，顺序调用通常可以正常工作。

如果你坚持将它们存储到同一个缓存中，你可以尝试设置hibernate.cache.keys_factory=default（我希望你的WF版本已经包含这个设置，新版本应该已经默认了）。

详情请参阅https://hibernate.atlassian.net/browse/HHH-11083 和https://hibernate.atlassian.net/browse/HHH-10287。