Tomcat Server crashed instantly while i run my application.
I have done a spring mvc application with hibernate framework.I am new hibernate and spring mvc.
I deployed my app to tomcat server.. It runs only short time.
when i am going to check tomcat log files.
i got this error when my app not load in tomcat server.
log files in tomcat server
localhost.24-1-14
Jan 28, 2014 4:39:23 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/travellogs] threw exception [Handler processing failed; nested exception is java.lang.OutOfMemoryError: PermGen space] with root cause
java.lang.OutOfMemoryError: PermGen space
some times i got this error "Too Many Connections"
I don't know how to resolve it. I think my code contain memory leakage..
This is my jdbc.properties file
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/kqtravellog?autoReconnect=true
jdbc.username=kqtravellog
jdbc.password=123asd!@#
jdbc.maxConnections=25
jdbc.acquireIncrement=5
jdbc.minPoolSize=25
jdbc.maxPoolSize=1000
jdbc.maxIdleTime=36000
jdbc.numHelperThreads=100
# Property that determines the Hibernate dialect
hibernate.dialect=org.hibernate.dialect.MySQLDialect
dispatcher servlet
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.kqics" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />
<bean id="userService" class="com.sample.dao.traveldao">
</bean>
<bean id="viewResolver1" class="org.springframework.web.servlet.view.ResourceBundleViewResolver">
<property name="order" value="1"/>
<property name="basename" value="views"/>
</bean>
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- one of the properties available; the maximum file size in bytes -->
<property name="maxUploadSize" value="10000000" />
</bean>
<import resource="db-config.xml" />
</beans>
db-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location"><value>/WEB-INF/jdbc.properties</value></property>
</bean>
<bean id="dataSourceBean" lazy-init="true" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass" value="${jdbc.driverClassName}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="acquireIncrement" value="${jdbc.acquireIncrement}" />
<property name="minPoolSize" value="${jdbc.minPoolSize}" />
<property name="maxPoolSize" value="${jdbc.maxPoolSize}" />
<property name="maxIdleTime" value="${jdbc.maxIdleTime}" />
<property name="numHelperThreads" value="${jdbc.numHelperThreads}" />
</bean>
<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"
p:dataSource-ref="dataSourceBean"
p:packagesToScan="com.kqics" >
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<!-- <prop key="hibernate.hbm2ddl.auto">create</prop> -->
<prop key="hibernate.show_sql">true</prop>
</props>
</property>
</bean>
<!-- Transaction manager for a single Hibernate SessionFactory (alternative to JTA) -->
<tx:annotation-driven/>
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ><ref bean="sessionFactory"/></property>
</bean>
</beans>
This is my dao implementation
public class kqtraveldao {
private HibernateTemplate hibernateTemplate;
@Autowired
public void setSessionFactory(SessionFactory sessionFactory) {
try {
hibernateTemplate = new HibernateTemplate(sessionFactory);
} catch (Exception w) {
}
}
@Override
public void addnewvehicle(kqvehicle obj) {
hibernateTemplate.save(obj);
}
@SuppressWarnings("unchecked")
@Override
public List<kqvehicle> fetchallvehicle() {
List<kqvehicle> li=hibernateTemplate.find("from kqvehicle");
return li;
}
@Override
public void addnewvehicletariff(kqvehicletariff obj, String tariff) {
try
{
hibernateTemplate.getSessionFactory()
.openSession()
.createSQLQuery("insert into "+tariff+" values(?,?,?,?,?)")
.setParameter(0, obj.getTid())
.setParameter(1, obj.getVehicletype())
.setParameter(2, obj.getRupees())
.setParameter(3, obj.getDateupto())
.setParameter(4, obj.getDatetimedetermined())
.executeUpdate();
}
catch(Exception e)
{
}
finally
{
hibernateTemplate.getSessionFactory().close();
}
}
Service class
@Service public class kqtravellogservice implements ikqtravellogservice {
@Autowired
ikqtraveldao iDao;
@Transactional
public void serviceaddnewvehicle(kqvehicle obj) {
// TODO Auto-generated method stub
iDao.addnewvehicle(obj);
}
@Transactional
public List<kqvehicle> servicefetchallvehicle() {
return iDao.fetchallvehicle();
}
@Transactional
public void serviceaddnewvehicletariff(kqvehicletariff obj,String tariff) {
iDao.addnewvehicletariff(obj,tariff);
}
}
These methods are i used to develop a appln.
i dont know where i find memory leakage.. please advice me.....
