java - Ignite for Hibernate L2 非常慢

Question

我的系统包含 Hibernate、Spring、PostgreSQL、MongoDB、Neo4j 和 ElasticSearch，并使用 EhCache for Hibernate L2 和 Spring Cache，效果很好。

我正在测试 Ignite，但是当我将 Ignite 用于 Hibernate L2(使用 Spring Cache 运行速度很快)时，系统变得非常慢，我使用 JProfiler 来查看真正慢的是什么，我只看到以下方法非常慢:

org.postgresql.core.VisibleBufferedInputStream.read(byte[ ], int, int)
org.postgresql.jdbc2.AbstractJdbc2Statement.parseSql
javax.persistence.EntityManager.find

这对我来说意义不大。我正在使用来自 Branch 1.5.1-2 的 Ignite 1.5.1.final-SNAPSHOT 和 https://github.com/apache/ignite/pull/388 (我做了一个更改，自动为 Hibernate L2 创建缓存)，我用 1.4.0 测试，问题是一样的。

Ignite 的配置:

@Configuration
public class CacheConfiguration {

    @Bean
    public DynamicClassLoaderWrapper dynamicClassLoaderWrapper() {
        return new DynamicClassLoaderWrapper(this.getClass().getClassLoader());
    }

    @Bean
    @SuppressWarnings("unchecked")
    public CacheManager cacheManager() {
        IgniteConfiguration igniteConfiguration = new IgniteConfiguration();
        igniteConfiguration.setGridName("meceap-grid");
        igniteConfiguration.setClassLoader(dynamicClassLoaderWrapper());

        igniteConfiguration.setCacheConfiguration(this.createDefaultCache("br.com.bruno.model.*"),
                this.createDefaultCache("org.hibernate.cache.spi.UpdateTimestampsCache"),
                this.createDefaultCache("org.hibernate.cache.internal.StandardQueryCache"));

        SpringCacheManager springCacheManager = new SpringCacheManager();
        springCacheManager.setConfiguration(igniteConfiguration);
        springCacheManager.setDynamicCacheConfiguration(this.createDefaultCache(null));
        return springCacheManager;
    }

    private org.apache.ignite.configuration.CacheConfiguration createDefaultCache(String name) {
        org.apache.ignite.configuration.CacheConfiguration cacheConfiguration = new org.apache.ignite.configuration.CacheConfiguration();
        cacheConfiguration.setName(name);
        cacheConfiguration.setCacheMode(CacheMode.PARTITIONED);
        cacheConfiguration.setAtomicityMode(CacheAtomicityMode.ATOMIC);
        cacheConfiguration.setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC);
        cacheConfiguration.setStatisticsEnabled(true);
        cacheConfiguration.setEvictSynchronized(true);
        return cacheConfiguration;
    } 

public class RepositoryConfiguration {

    @Bean
    public LocalContainerEntityManagerFactoryBean meceapEntityManagerFactory() {
        LocalContainerEntityManagerFactoryBean bean = new LocalContainerEntityManagerFactoryBean();
        bean.setPersistenceUnitName(PERSISTENCE_UNIT_NAME);
        bean.setDataSource(dataSource);

        bean.getJpaPropertyMap().put("hibernate.dialect", hibernateDialect);
        bean.getJpaPropertyMap().put("hibernate.ejb.naming_strategy", NamingStrategyLowerCase.class.getCanonicalName());
        bean.getJpaPropertyMap().put("hibernate.jdbc.batch_size", 0);
        bean.getJpaPropertyMap().put("hibernate.use_sql_comments", true);
        bean.getJpaPropertyMap().put("hibernate.show_sql", false);
        bean.getJpaPropertyMap().put("org.apache.ignite.hibernate.grid_name", "meceap-grid");
        bean.getJpaPropertyMap().put("hibernate.cache.region.factory_class", HibernateRegionFactory.class.getCanonicalName());
        bean.getJpaPropertyMap().put("hibernate.cache.use_second_level_cache", true);
        bean.getJpaPropertyMap().put("hibernate.cache.use_query_cache", true);
        bean.getJpaPropertyMap().put("javax.persistence.sharedCache.mode", SharedCacheMode.ALL);
        bean.getJpaPropertyMap().put("hibernate.cache.default_cache_concurrency_strategy", "read-write");
        bean.getJpaPropertyMap().put("hibernate.generate_statistics", true);
        bean.getJpaPropertyMap().put("javax.persistence.validation.factory", validator);

        bean.setPersistenceProviderClass(HibernatePersistenceProvider.class);
        bean.setPackagesToScan("br.com.me.ceap.model");

        meceapEntityManagerFactoryRef = bean;

        return bean;
    }

Answer 1

看来还是用了EhCache region factory，所以Ignite实际上并没有配置为二级缓存。

您应该改用 Ignite 的 HibernateRegionFactory，有关正确配置的示例，请参阅 HibernateL2CacheExample。