Infinispan：当属性“可用”设置为 false 时启用统计信息

Question

启动配置为二级缓存的 Wildfly 时出现以下异常。我在persistence.xml 中启用了二级缓存。如果我在property 下方删除它会正常启动。下面的配置有什么问题？

persistence.xml

<property name="hibernate.cache.infinispan.statistics" value= "true"/>

standalone.xml（wildfly 自带的默认）

    <cache-container name="hibernate" default-cache="local-query" module="org.hibernate.infinispan">
        <local-cache name="entity">
            <transaction mode="NON_XA"/>
            <eviction strategy="LRU" max-entries="10000"/>
            <expiration max-idle="100000"/>
        </local-cache>
        <local-cache name="local-query">
            <eviction strategy="LRU" max-entries="10000"/>
            <expiration max-idle="100000"/>
        </local-cache>
        <local-cache name="timestamps"/>
    </cache-container>

例外：

当属性 'available' 设置为 false 时启用统计信息。

日志

        ... 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.cache.CacheException: Unable to start region factory
        at org.hibernate.cache.infinispan.InfinispanRegionFactory.start(InfinispanRegionFactory.java:418)
        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)
        ... 14 more
Caused by: org.infinispan.commons.CacheConfigurationException: ISPN000372: **Statistics are enabled while attribute 'available' is set to false.**
        at org.infinispan.configuration.cache.JMXStatisticsConfigurationBuilder.validate(JMXStatisticsConfigurationBuilder.java:69)
        at org.infinispan.configuration.cache.ConfigurationBuilder.validate(ConfigurationBuilder.java:203)
        at org.infinispan.configuration.cache.ConfigurationBuilder.build(ConfigurationBuilder.java:246)
        at org.infinispan.configuration.cache.ConfigurationBuilder.build(ConfigurationBuilder.java:236)
        at org.hibernate.cache.infinispan.InfinispanRegionFactory.defineGenericDataTypeCacheConfigurations(InfinispanRegionFactory.java:636)
        at org.hibernate.cache.infinispan.InfinispanRegionFactory.start(InfinispanRegionFactory.java:394)
        ... 19 more

Answer 1

正如错误消息所解释的，统计信息已启用（通过您的persistence.xml 中的hibernate.cache.infinispan.statistics=true），但缓存容器统计信息不可用，因为默认情况下未启用。

Wildfly 10（和 JBoss EAP 7）在应用程序启动时验证休眠统计信息（参见JMXStatisticsConfigurationBuilder:64）。由于启用了应用统计信息，但容器统计信息不可用，则会引发异常。

要激活缓存容器统计信息，您需要在cache-container 和local-cache 配置中添加statistics-enabled="true"：

<cache-container name="hibernate" default-cache="local-query"
        module="org.hibernate.infinispan"
        statistics-enabled="true">
        <local-cache name="entity"
            statistics-enabled="true">
            <transaction mode="NON_XA"/>
            <eviction strategy="LRU" max-entries="10000"/>
            <expiration max-idle="100000"/>
        </local-cache>
        <local-cache name="local-query"
            statistics-enabled="true">
            <eviction strategy="LRU" max-entries="10000"/>
            <expiration max-idle="100000"/>
        </local-cache>
        <local-cache name="timestamps"
            statistics-enabled="true"/>
</cache-container>