Ich habe etwa 1,4 Millionen Datensätze, aber es dauert mehr als 3 Stunden, um sie einzufügen. Ich kann das Problem nicht finden.Wie kann die Einfüge-Abfragezeit mithilfe von Hiberate optimiert werden?
Ich lese und ändere von Identität zu Sequenz. Es hat sich nur ein wenig verbessert, aber es dauert immer noch ziemlich lange, bis das Einfügen abgeschlossen ist.
Ich verwende:
- Hibernate 5
- Spring 4
- mssql 2014
- Wildfly 10
application-hibernate.xml
<tx:advice id="txAdvice">
<!-- the transactional semantics... -->
<tx:attributes>
<tx:method name="*_TransNew" propagation="REQUIRES_NEW" />
<tx:method name="*_NoTrans" propagation="NEVER" />
<tx:method name="create*" propagation="REQUIRED" />
<tx:method name="update*" propagation="REQUIRED" />
<tx:method name="delete*" propagation="REQUIRED" />
<tx:method name="add*" propagation="REQUIRED" />
<tx:method name="generate*" propagation="REQUIRED" />
<tx:method name="get*" propagation="REQUIRED" />
<tx:method name="is*" propagation="REQUIRED" />
<!-- other methods use the default transaction settings (see below) -->
<tx:method name="*" read-only="true" />
</tx:attributes>
</tx:advice>
<!-- ensure that the above transactional advice runs for any execution of
an operation defined by the following -->
<aop:config>
<aop:pointcut id="demoServiceOperations"
expression="execution(* com.test.*.*.*(..))" />
<aop:advisor advice-ref="txAdvice" pointcut-ref="demoServiceOperations" />
</aop:config>
<bean id="sessionFactory"
class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="hibernateProperties">
<props>
<prop key="hibernate.show_sql">true</prop>
<prop key="hibernate.dialect">org.hibernate.dialect.SQLServer2012Dialect</prop>
<prop key="hibernate.cache.region.factory_class">org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory</prop>
<prop key="hibernate.cache.use_second_level_cache">true</prop>
<prop key="hibernate.cache.use_query_cache">true</prop>
<prop key="hibernate.jdbc.batch_size">50</prop>
<prop key="hibernate.order_inserts">true</prop>
<prop key="hibernate.order_updates">true</prop>
<prop key="hibernate.c3p0.min_size">5</prop>
<prop key="hibernate.c3p0.max_size">20</prop>
<prop key="hibernate.c3p0.timeout">1800</prop>
<prop key="hibernate.c3p0.max_statements">50</prop>
</props>
</property>
</bean>
Umts.hbm.xml:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<!-- Generated Nov 22, 2016 11:36:21 AM by Hibernate Tools 5.2.0.Beta1 -->
<hibernate-mapping>
<class name="com.test.domain.Umts" table="TBLDM_UMTS" schema="dbo" catalog="DEMO" optimistic-lock="version" dynamic-update="true">
<id name="umtsId" type="java.lang.Integer">
<column name="UMTS_ID" />
<generator class="org.hibernate.id.enhanced.SequenceStyleGenerator">
<param name="optimizer">pooled-lo</param>
<param name="increment_size">1</param>
<param name="sequence_name">UMTS_SEQ</param>
</generator>
</id>
<property name="cid" type="java.lang.Integer">
<column name="CI" not-null="true" />
</property>
<property name="channelNo" type="java.lang.Integer">
<column name="UARFCN" />
</property>
<property name="signalStrength" type="java.lang.Double">
<column name="EC_IO" precision="53" scale="0" />
</property>
<property name="sc" type="java.lang.Integer">
<column name="SC" />
</property>
<property name="latitude" type="java.lang.Double">
<column name="LATITUDE" precision="53" scale="0" />
</property>
<property name="longitude" type="java.lang.Double">
<column name="LONGITUDE" precision="53" scale="0" />
</property>
<property name="mcc" type="java.lang.Integer">
<column name="MCC" not-null="true" />
</property>
<property name="mnc" type="java.lang.Integer">
<column name="MNC" not-null="true" />
</property>
<property name="recvDate" type="date">
<column name="RECV_DATE" length="10" />
</property>
<property name="recvTime" type="time">
<column name="RECV_TIME" length="16" />
</property>
</class>
</hibernate-mapping>
Service-Klasse:
public void process(List<Umts> umtsList)
{
for (int i = 0; i < umtsList.size(); i = i + PropertiesUtil.MAX_COMMIT_COUNT)
{
int min = i;
int max = i + PropertiesUtil.MAX_COMMIT_COUNT;
if (max > umtsList.size())
{
max = umtsList.size();
}
createUmts_TransNew(umtsList.subList(min, max));
}
}
@Override
public void createUmts_TransNew(Collection list)
{
// TODO Auto-generated method stub
umtsDAO.saveAll(list);
}
DAO Klasse:
@Transactional
public void saveAll(Collection collection)
{
log.debug("** save all");
try
{
if (collection != null && collection.size() > 0)
{
for (Object obj : collection)
{
sessionFactory.getCurrentSession().saveOrUpdate(obj);
}
}
}
catch (RuntimeException re)
{
log.error("** save all failed", re);
throw re;
}
}
** Herausgegeben Hat Connection-Pool eine Rolle spielt hier? Bedeutung hilft Verbindungspool mit der Leistung? Muss ich die JAR-Datei zur Wildfly 10 oder zur Anwendung selbst hinzufügen?
warum es in Java? Können Sie die Stapeleinfügung verwenden? –
@ScaryWombat ist nicht das, was ich einen Batch-Einsatz gemacht habe? – shadow
siehe http://viralpatel.net/blogs/batch-insert-in-java-jdbc/ –