Erreur Broken Pipe + Mysql + Tomcat

**akademiks** · 28/08/2006, 17h37

J'ai vraiment un gros problème, j'ai des erreur intermitentes de broken pipe dans mon application web...peu importe la page qu'on tente d'accéder. Le problème c'est que mon application est en production! Je n'avais pas ce problème avant je ne comprend pas pourquoi je l'ai maintenant. J'ai tenter de modifier les paramètre maxwait, maxidle et maxactive dans mon hibernate.cfg.xml mais sans succès.

Ce que j'utilise :

MySQL 4.1
Tomcat 5.5
DBCP
Hibernate version: 3.0

Mon datasource est bien configuré dans \META-INF\context.xml cette config fonctionne car je l'ai testé dans une autre application sans utiliser hibernate.

Voici mon code dans ma classe helper pour Hibernate:

Code :

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private static final SessionFactory sessionFactory;
private static final ThreadLocal threadSession = new ThreadLocal();
private static final ThreadLocal threadTransaction = new ThreadLocal();
 
//Quelqu'un peu me confirmer que ce bloque static est correcte avec l'utilisation d'un datasource?
static
{
try
{
Configuration cfg = new Configuration();
cfg.configure("mapping/hibernate.cfg.xml");
sessionFactory = cfg.buildSessionFactory();
}
catch(Throwable ex)
{
ex.printStackTrace();
throw new ExceptionInInitializerError(ex);
}
}
 
/**
* Return a unique session object
*
*/
public static Session getSession() {
 
Session session = (Session) threadSession.get();
 
//Open a new Session, if this thread has none yet
try{
if(session == null){
session = sessionFactory.openSession();
threadSession.set(session);
}
}
catch(HibernateException ex){
ex.getMessage();
}
 
return session;
}
 
/**
* Close the session object
*
*/
public static void closeSession(){
Session session = (Session)threadSession.get();
try{
threadSession.set(null);
if(session != null && session.isOpen()){
session.close();
}
}
catch(HibernateException ex){
ex.printStackTrace();
}
}
 
 
Mon fichier hibernate.cfg.xml:
 
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 
<!-- Generated by MyEclipse Hibernate Tools. -->
<hibernate-configuration>
 
<session-factory>
 
<property name="myeclipse.connection.profile">MySql</property>
<property name="connection.url">jdbc:mysql://localhost/inouk?autoReconnect=true</property>
<property name="connection.username">admin</property>
<property name="connection.password">pass</property>
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="hibernate.show_sql">false</property>
<property name="connection.datasource">java:comp/env/jdbc/InoukDB</property>
 
<!--### Apache DBCP Connection Pool ###-->
<!--connection pool-->
<property name="hibernate.dbcp.maxActive">10</property>
<property name="hibernate.dbcp.whenExhaustedAction">1</property>
<property name="hibernate.dbcp.maxWait">20000</property>
<property name="hibernate.dbcp.maxIdle">10</property>
 
<!-- prepared statement cache-->
<property name="hibernate.dbcp.ps.maxActive">10</property>
<property name="hibernate.dbcp.ps.whenExhaustedAction">1</property>
<property name="hibernate.dbcp.ps.maxWait">20000</property>
<property name="hibernate.dbcp.ps.maxIdle">10</property>
 
<!-- optional query to validate pooled connections:-->
<property name="hibernate.dbcp.validationQuery">select 1</property>
<property name="hibernate.dbcp.testOnBorrow">true</property>
<property name="hibernate.dbcp.testOnReturn">true</property>
 
<mapping resource="mapping/Departement.hbm.xml" />
<mapping resource="mapping/Poste.hbm.xml" />
<mapping resource="mapping/Staff.hbm.xml" />
<mapping resource="mapping/Menu.hbm.xml" />
<mapping resource="mapping/Login.hbm.xml" />
<mapping resource="mapping/Nouvelles.hbm.xml" />
<mapping resource="mapping/Promotion.hbm.xml" />
<mapping resource="mapping/Equipe.hbm.xml" />
<mapping resource="mapping/Joueur.hbm.xml" />
<mapping resource="mapping/Equipejoueur.hbm.xml" />
<mapping resource="mapping/Equipestaff.hbm.xml" />
<mapping resource="mapping/Fan.hbm.xml" />
<mapping resource="mapping/Partie.hbm.xml" />
<mapping resource="mapping/Partenaire.hbm.xml" />
 
</session-factory>
 
</hibernate-configuration>
/b]
 
[b]
Ma trace trace:
 
2006-08-28 10:52:43 StandardWrapperValve[jsp]: Servlet.service() for servlet jsp threw exception
org.hibernate.exception.GenericJDBCException: could not execute query
at org.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:92)
at org.hibernate.exception.ErrorCodeConverter.convert(ErrorCodeConverter.java:80)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.doList(Loader.java:1596)
at org.hibernate.loader.Loader.list(Loader.java:1577)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:111)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1322)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:300)
at view.ShowNouvelles.showResume(ShowNouvelles.java:194)
at org.apache.jsp.accueil_jsp._jspService(accueil_jsp.java:129)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:374)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:743)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:675)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:866)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:534)
Caused by: com.mysql.jdbc.CommunicationsException: Communications link failure due to underlying exception:
 
** BEGIN NESTED EXCEPTION **
 
java.net.SocketException
MESSAGE: Broken pipe
 
STACKTRACE:
 
java.net.SocketException: Broken pipe
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:66)
at java.io.BufferedOutputStream.write(BufferedOutputStream.java:110)
at com.mysql.jdbc.MysqlIO.send(MysqlIO.java:2635)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1554)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1665)
at com.mysql.jdbc.Connection.execSQL(Connection.java:3124)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1146)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1259)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:120)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1272)
at org.hibernate.loader.Loader.doQuery(Loader.java:391)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218)
at org.hibernate.loader.Loader.doList(Loader.java:1593)
at org.hibernate.loader.Loader.list(Loader.java:1577)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:111)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1322)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:300)
at view.ShowNouvelles.showResume(ShowNouvelles.java:194)
at org.apache.jsp.accueil_jsp._jspService(accueil_jsp.java:129)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:300)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:374)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:743)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:675)
at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:866)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:534)
 
 
** END NESTED EXCEPTION **

Si quelqu'un a une idée de mon problème, n'hésitez pas ce serait très apprécié! Merci

**Pietra** · 04/09/2006, 16h33

Bonjour,

il te faut probablement tester la connection avec la base de données avant de retourner la session Hibernate et l'utiliser.

Code :

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    public static Session getSession() {

        Session session = (Session) threadSession.get();


        try {
            // test de la connection
            if (!session.isOpen() || !session.isConnected()) {
                session.close();
                session = null;
            }
            // Open a new Session, if this thread has none yet
            if (session == null) {
                session = sessionFactory.openSession();
                threadSession.set(session);
            }
        } catch (HibernateException ex) {
            ex.getMessage();
        }

        return session;
    }

Erreur Broken Pipe + Mysql + Tomcat

Hibernate Java

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