一个微不足道的Spring Boot 2.5 application使用带有 EhCache 3 和 Hibernate 5 的 Spring Data JPA,并启用查询和二级缓存:
spring.jpa.properties.hibernate.cache.use_query_cache=true
spring.jpa.properties.hibernate.cache.use_second_level_cache=true
在启动时为每个缓存生成来自 Hibernate 的警告和来自 EhCache 的信息消息:
WARN org.hibernate.orm.cache HHH90001006: Missing cache[default-update-timestamps-region] was created on-the-fly. The created cache will use a provider-specific default configuration: make sure you defined one. You can disable this warning by setting 'hibernate.javax.cache.missing_cache_strategy' to 'create'.
INFO org.ehcache.core.EhcacheManager Cache 'default-update-timestamps-region' created in EhcacheManager.
和
WARN org.hibernate.orm.cache HHH90001006: Missing cache[default-query-results-region] was created on-the-fly. The created cache will use a provider-specific default configuration: make sure you defined one. You can disable this warning by setting 'hibernate.javax.cache.missing_cache_strategy' to 'create'.
INFO org.ehcache.core.EhcacheManager Cache 'default-query-results-region' created in EhcacheManager.
这些 Hibernate 缓存的正确 EhCache 配置是什么?
最佳答案
Disable expiration on the default-update-timestamps-region
cache as recommended by Hibernate :
@Configuration @EnableCaching
public class ApplicationConfiguration {
@Bean
public CacheManager ehCacheManager() {
CacheManager cacheManager = Caching.getCachingProvider().getCacheManager();
hibernateDefaultUpdateTimestampsRegionConfiguration(cacheManager);
hibernateDefaultQueryResultsRegion(cacheManager);
return cacheManager;
}
/**
* Create Hibernate's default-update-timestamps-region cache. No expiration per Hibernate recommendation:
* https://github.com/hibernate/hibernate-orm/blob/main/documentation/src/main/asciidoc/userguide/chapters/caching/Caching.adoc#query-cache-regions
*
* @param cacheManager
*/
private void hibernateDefaultUpdateTimestampsRegionConfiguration(CacheManager cacheManager) {
CacheConfigurationBuilder<Object, Object> builder = CacheConfigurationBuilder
.newCacheConfigurationBuilder(Object.class, Object.class,
ResourcePoolsBuilder.newResourcePoolsBuilder().offheap(1, MemoryUnit.MB));
javax.cache.configuration.Configuration<Object, Object> cache = Eh107Configuration.fromEhcacheCacheConfiguration(builder);
cacheManager.createCache("default-update-timestamps-region", cache);
//cacheManager.createCache("default-update-timestamps-region", new MutableConfiguration<>());
}
/**
* Create Hibernate's default-query-results-region cache.
* https://github.com/hibernate/hibernate-orm/blob/main/documentation/src/main/asciidoc/userguide/chapters/caching/Caching.adoc#query-cache-regions
*
* @param cacheManager
*/
private void hibernateDefaultQueryResultsRegion(CacheManager cacheManager) {
CacheConfigurationBuilder<Object, Object> builder = CacheConfigurationBuilder
.newCacheConfigurationBuilder(Object.class, Object.class,
ResourcePoolsBuilder.newResourcePoolsBuilder().offheap(1, MemoryUnit.MB));
javax.cache.configuration.Configuration<Object, Object> cache = Eh107Configuration.fromEhcacheCacheConfiguration(builder);
cacheManager.createCache("default-query-results-region", cache);
//cacheManager.createCache("default-query-results-region", new MutableConfiguration<>());
}
}
关于java - HHH90001006 : Missing cache[default-update-timestamps-region] was created on-the-fly,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/67993442/