У меня есть приложение Java, использующее Spring + Hibernate. У меня довольно простая транзакция, которая только недавно начала выполняться ДЕЙСТВИТЕЛЬНО долго (~ 25 секунд), хотя она не выполняет каких-либо непонятных / сложных запросов, и, согласно журналу, эти 25 секунд тратятся в коде Hiberante. Браузер просто висит там, ожидая, пока это не будет сделано ...
Транзакция выполняется через аннотации с использованием org.springframework.orm.hibernate3.LocalSessionFactoryBean в качестве фабрики сеансов и org.springframework.orm.hibernate3.HibernateTransactionManager в качестве менеджера транзакций.
Для кеша Hibernate я использую Memcached, но это не должно быть проблемой, по словам журнала, по крайней мере, он пока не касается кеша ....
Я здесь представляю соответствующий кусок журнала:
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Found thread-bound Session [org.hibernate.impl.SessionImpl@a04a093] for Hibernate transaction
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Using transaction object [org.springframework.orm.hibernate3.HibernateTransactionManager$HibernateTransactionObject@35ca1808]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Creating new transaction with name [com.quebicoca.api.service.PaymentService.buy]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Preparing JDBC Connection of Hibernate Session [org.hibernate.impl.SessionImpl@a04a093]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Exposing Hibernate transaction as JDBC transaction [com.mysql.jdbc.JDBC4Connection@66efd0ce]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Bound value [org.springframework.jdbc.datasource.ConnectionHolder@a75b92e] for key [org.springframework.jdbc.datasource.DriverManagerDataSource@1420ca8b] to thread [http-8080-12]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Initializing transaction synchronization
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionInterceptor] Getting transaction for [com.quebicoca.api.service.PaymentService.buy]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Found thread-bound Session [org.hibernate.impl.SessionImpl@a04a093] for Hibernate transaction
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.jdbc.datasource.ConnectionHolder@a75b92e] for key [org.springframework.jdbc.datasource.DriverManagerDataSource@1420ca8b] bound to thread [http-8080-12]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Using transaction object [org.springframework.orm.hibernate3.HibernateTransactionManager$HibernateTransactionObject@36d0805f]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|HibernateTransactionManager] Participating in existing transaction
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionInterceptor] Getting transaction for [com.quebicoca.api.service.PaymentService.buy]
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|HashCodeKeyStrategy] Transformed key [UserOrder_holders] to hashCode [-1959252437]
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|HashCodeKeyStrategy] Final cache key: [org.hibernate.cache.UpdateTimestampsCache:0:-1959252437]
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|MemcachedCache] Memcache.set(org.hibernate.cache.UpdateTimestampsCache:0:-1959252437)
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|SpyMemcache] MemcachedClient.set(org.hibernate.cache.UpdateTimestampsCache:0:-1959252437)
...
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|DispatcherServlet] Successfully completed request
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|TransactionSynchronizationManager] Removed value [org.springframework.orm.hibernate3.SessionHolder@5862af29] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] from thread [http-8080-25]
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|OpenSessionInViewFilter] Closing single Hibernate Session in OpenSessionInViewFilter
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|SessionFactoryUtils] Closing Hibernate Session
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|ExceptionTranslationFilter] Chain processed normally
[DEBUG] [2010-10-09 @ 07:25:55] [http-8080-25|SecurityContextPersistenceFilter] SecurityContextHolder now cleared, as request processing completed
[DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
[DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] for key [org.hibernate.impl.SessionFactoryImpl@c4be179] bound to thread [http-8080-12]
[DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|HibernateTemplate] Found thread-bound Session for HibernateTemplate
[DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|HashCodeKeyStrategy] Transformed key [UserOrder] to hashCode [-1966312925]
[DEBUG] [2010-10-09 @ 07:25:56] [http-8080-12|HashCodeKeyStrategy] Final cache key: [org.hibernate.cache.UpdateTimestampsCache:0:-1966312925]
Последнее, что было зарегистрировано до 25-секундного перерыва:
[DEBUG] [2010-10-09 @ 07:25:30] [http-8080-12 | TransactionSynchronizationManager] Полученное значение [org.springframework.orm.hibernate3.SessionHolder@3538ce1b] для ключа [org.hibernate. impl.SessionFactoryImpl@c4be179] привязан к теме [http-8080-12]
Я был единственным, кто вошел в систему во время этого журнала, я закрыл доступ для всех, кроме меня, с Apache, запущенного перед Tomcat.
Любые идеи приветствуются.
EDIT:
Добавлен мой класс Order согласно запросу:
@Entity
@Table(name = "UserOrder")
@Cache(usage = CacheConcurrencyStrategy.READ_WRITE)
public class Order {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@ManyToOne(optional = false)
private Deal deal;
@CollectionOfElements
private Map<String, Integer> holders;
@ManyToOne(optional = false)
private User user;
@org.hibernate.annotations.Type(type = "org.joda.time.contrib.hibernate.PersistentDateTime")
@Column(nullable = false)
private DateTime buyingDate;
@Column(nullable = false)
@Enumerated(EnumType.STRING)
private OrderState state;
private BigDecimal payedWithUserCredit;
@Column(nullable = false)
private int quantity;
@Column(nullable = false)
private String secret;
private boolean mailSent;
@Enumerated(EnumType.STRING)
private PaymentMethod paymentMethod;
}
РЕДАКТИРОВАТЬ 2:
Более легкие предложения Spy Memcached, возможно, есть чем заняться, я решил вернуться к EHCache.
Оказалось, что еще хуже (повешение 1:16). Журнал:
[DEBUG] [2010-10-13 @ 04:28:47] [http-8080-1|HibernateTransactionManager] Triggering beforeCommit synchronization
[DEBUG] [2010-10-13 @ 04:28:47] [http-8080-1|HibernateTransactionManager] Triggering beforeCompletion synchronization
[DEBUG] [2010-10-13 @ 04:28:47] [http-8080-1|HibernateTransactionManager] Initiating transaction commit
[DEBUG] [2010-10-13 @ 04:28:47] [http-8080-1|HibernateTransactionManager] Committing Hibernate transaction on Session [org.hibernate.impl.SessionImpl@20360e46]
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|HibernateTransactionManager] Triggering afterCommit synchronization
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|HibernateTransactionManager] Triggering afterCompletion synchronization
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|TransactionSynchronizationManager] Clearing transaction synchronization
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|TransactionSynchronizationManager] Removed value [org.springframework.jdbc.datasource.ConnectionHolder@30c2ea0b] for key [org.springframework.jdbc.datasource.DriverManagerDataSource@614a616] from thread [http-8080-1]
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|HibernateTransactionManager] Not closing pre-bound Hibernate Session [org.hibernate.impl.SessionImpl@20360e46] after transaction
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@839c6c7] for key [org.hibernate.impl.SessionFactoryImpl@6fbae5f5] bound to thread [http-8080-1]
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|DriverManagerDataSource] Creating new JDBC DriverManager Connection to [jdbc:mysql://localhost/quebicoca]
[DEBUG] [2010-10-13 @ 04:30:03] [http-8080-1|TransactionSynchronizationManager] Retrieved value [org.springframework.orm.hibernate3.SessionHolder@839c6c7] for key [org.hibernate.impl.SessionFactoryImpl@6fbae5f5] bound to thread [http-8080-1]
Я совершенно потерян ...