java - Hibernate キャッシュが常にミスする

Question

Spring フレームワークで Hibernate を使用しており、CriteriaAPI を介して記述されたクエリをキャッシュしようとしています。クエリキャッシュと 2 次キャッシュを有効にしました。また、その特定のクエリで setCacheable を true に設定しました。問題は、休止状態のセッション統計が、複数回実行している同じクエリのデータベースすべてにヒットすることを示していることです。

基準クエリを使用した関数は次のとおりです

@Override
public Collection<Article> findLatestArticle(int count) {
    // TODO Auto-generated method stub
    Criteria criteria = this.getSession()
    .createCriteria(Article.class)
    .setCacheable(true)
    .setCacheRegion(CACHE_REGION)
    .add(Restrictions.eq("isVisible", 1))
    //.createCriteria("Count")
    //.add(Restrictions.eq("Count", count))
    .setFirstResult(0)
    .setMaxResults(count);

    return criteria.list();
}

ここに呼び出し元関数があります

@Test
public void t1(){
    List<Article> articleList = (List<Article>) articleDao.findLatestArticle(1);

    //Article a = articleDao.findById(articlePk);

    for(int i=0; i<19; i++)
        articleDao.findLatestArticle(1);

    Statistics stats = sessionFactory.getCurrentSession().getSessionFactory().getStatistics();

    //System.out.println("2nd Lvl Stats: " + stats.getSecondLevelCacheStatistics(CACHE_REGION));
    stats.logSummary();

    System.out.println("Empty: " + articleList.isEmpty());

    assertTrue(!articleList.isEmpty());
    //assertNotNull(a);
}

spring-hibernate-context ファイル

<property name="hibernateProperties">
        <props>
            <prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
            <prop key="hibernate.show_sql">false</prop>
            <prop key="hibernate.transaction.factory_class">org.hibernate.transaction.JDBCTransactionFactory</prop>
            <prop key="hibernate.cache.use_second_level_cache">true</prop>
            <prop key="hibernate.cache.use_query_cache">true</prop>
            <prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop>
            <prop key="hibernate.generate_statistics">true</prop>
            <prop key="hibernate.cache.use_structured_entries">true</prop>
            <prop key="net.sf.Ehcache.configurationResourceName">ehcache.xml</prop>
        </props>
    </property>

このクラスの ehcache 部分

<cache name="com.contento3.cms.article.model.Article"
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="300"
timeToLiveSeconds="60"
overflowToDisk="true"/>

ログの抜粋:

    2012-11-14 21:05:03,020 [main] INFO  org.hibernate.cfg.SettingsFactory - Second-level cache: enabled
2012-11-14 21:05:03,020 [main] INFO  org.hibernate.cfg.SettingsFactory - Query cache: enabled
    2012-11-14 21:05:03,969 [main] INFO  org.hibernate.cache.StandardQueryCache - starting query cache at region: com.contento3.cms.article.model.Article
2012-11-14 21:05:03,998 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 10ms, rows: 1
2012-11-14 21:05:04,010 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 1ms, rows: 1
2012-11-14 21:05:04,019 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 8ms, rows: 1
2012-11-14 21:05:04,022 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,024 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,026 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,033 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 7ms, rows: 1
2012-11-14 21:05:04,035 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,038 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,041 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,050 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 3ms, rows: 1
2012-11-14 21:05:04,059 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 9ms, rows: 1
2012-11-14 21:05:04,062 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 3ms, rows: 1
2012-11-14 21:05:04,067 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 4ms, rows: 1
2012-11-14 21:05:04,074 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 5ms, rows: 1
2012-11-14 21:05:04,077 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,079 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 1ms, rows: 1
2012-11-14 21:05:04,081 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 1ms, rows: 1
2012-11-14 21:05:04,083 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,085 [main] INFO  org.hibernate.stat.Statistics - HQL: from Article as a, time: 2ms, rows: 1
2012-11-14 21:05:04,085 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - Logging statistics....
2012-11-14 21:05:04,085 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - start time: 1352909103053
2012-11-14 21:05:04,085 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - sessions opened: 1
2012-11-14 21:05:04,085 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - sessions closed: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - transactions: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - successful transactions: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - optimistic lock failures: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - flushes: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - connections obtained: 1
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - statements prepared: 21
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - statements closed: 21
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - second level cache puts: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - second level cache hits: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - second level cache misses: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - entities loaded: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - entities updated: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - entities inserted: 1
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - entities deleted: 0
2012-11-14 21:05:04,086 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - entities fetched (minimize this): 0
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - collections loaded: 0
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - collections updated: 0
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - collections removed: 0
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - collections recreated: 0
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - collections fetched (minimize this): 0
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - queries executed to database: 20
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - query cache puts: 20
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - query cache hits: 0
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - query cache misses: 20
2012-11-14 21:05:04,087 [main] INFO  org.hibernate.stat.ConcurrentStatisticsImpl - max query time: 10ms

私はSpringとHibernateにかなり慣れていません。私はこの問題に関する記事を少なくとも 12 本読み、できる限りのことをしました。また、createQuery メソッドを使用して同様のクエリを作成しましたが、結果は同じでした。どんな助けでも大歓迎です。

java - Hibernate キャッシュが常にミスする

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