Hibernate mysql innodb

Question

I wanted to force hibernate to use innodb.

So, i changed the "hibernate.dialect" in order to have innodb, but i can connect to mysql, but when i do some transactions i have the following error:

org.springframework.transaction.TransactionSystemException: Could not commit JPA transaction; nested exception is javax.persistence.RollbackException: Transaction marked as rol lbackOnly at org.springframework.orm.jpa.JpaTransactionManager.doCommit(JpaTransactionManager.java:465) at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:709) at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:678) at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:321) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:116) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204) at $Proxy46.deleteAsset(Unknown Source)

here is my persistence.xml:

<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
    http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">
    <persistence-unit name="name" transaction-type="RESOURCE_LOCAL">         
        <provider>org.hibernate.ejb.HibernatePersistence</provider>      
        <properties>
            <property name="hibernate.archive.autodetection" value="class, hbm"/>
            <property name="hibernate.show_sql" value="false"/>
            <property name="hibernate.format_sql" value="true"/>
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect"/>                      
            <property name="hibernate.hbm2ddl.auto" value="update"/>    
            <!--        
            <property name="hibernate.c3p0.min_size" value="5"/>
            <property name="hibernate.c3p0.max_size" value="20"/>
            <property name="hibernate.c3p0.timeout" value="300"/>
            <property name="hibernate.c3p0.max_statements" value="50"/>
            <property name="hibernate.c3p0.idle_test_period" value="3000"/>     
            --> 
            <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver"/>
            <property name="hibernate.connection.url" value="jdbc:mysql://xxxxxx"/>
            <property name="hibernate.connection.username" value="xxxxx"/>
            <property name="hibernate.connection.password" value="xxxxxx"/>

            <property name="defaultAutoCommit" value="false"/>

            <!-- Connection auto reconnect after long inactivity -->
            <property name="connection.autoReconnect" value="true"/>
            <property name="connection.autoReconnectForPools" value="true"/>
            <property name="connection.is-connection-validation-required" value="true"/>
        </properties>
    </persistence-unit>         
</persistence>

Do you have any idea ?

Answer 1

Hibernate has no say in whether a table is Inno, MyISAM or another storage engine - that's decided on the MySQL side. There are defaults in the server config, and you can override them when you create tables.

The difference would not have given you the trace - all that happens when you use transactions on a MyISAM table, is you get no transactions. Everything succeeds, but there's no isolation and no roll-backs.

Per @shipmaster, your trace means you have an underlying problem, which is probably not related to your dialect choice. Take a look in the logs, or attach Spring's sources to the project and trace through them.