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Re: jbpm5 Exception:Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.persistence.processinstance.ProcessInstanceInfo#2]
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created by <a href="http://community.jboss.org/people/danielch">Daniel Ch</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/613878#613878">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am facing the same problem and I want to provide more information.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>My JBPM datasource: </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-xml"><span class="jive-xml-tag"><datasources></span>
<span class="jive-xml-tag"><xa-datasource></span>
        <span class="jive-xml-tag"><jndi-name></span>JbpmDS<span class="jive-xml-tag"></jndi-name></span>
        <span class="jive-xml-tag"><xa-datasource-class></span>oracle.jdbc.xa.client.OracleXADataSource<span class="jive-xml-tag"></xa-datasource-class></span>
        <span class="jive-xml-tag"><xa-datasource-property name="URL"></span>jdbc:oracle:thin:@HOST:1521:SCHEMA<span class="jive-xml-tag"></xa-datasource-property></span>
        <span class="jive-xml-tag"><xa-datasource-property name="User"></span>USER<span class="jive-xml-tag"></xa-datasource-property></span>
        <span class="jive-xml-tag"><xa-datasource-property name="Password"></span>PASSWORD<span class="jive-xml-tag"></xa-datasource-property></span>
        <span class="jive-xml-tag"><min-pool-size></span>1<span class="jive-xml-tag"></min-pool-size></span>
        <span class="jive-xml-tag"><max-pool-size></span>5<span class="jive-xml-tag"></max-pool-size></span>
        <span class="jive-xml-tag"><idle-timeout-minutes></span>0<span class="jive-xml-tag"></idle-timeout-minutes></span>
        <span class="jive-xml-tag"><prepared-statement-cache-size></span>32<span class="jive-xml-tag"></prepared-statement-cache-size></span>
        <span class="jive-xml-tag"><metadata></span>
            <span class="jive-xml-tag"><type-mapping></span>Hypersonic SQL<span class="jive-xml-tag"></type-mapping></span>
        <span class="jive-xml-tag"></metadata></span>
<span class="jive-xml-tag"></xa-datasource></span>
</code></pre><p>     </p><p>Persistence.xml:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-xml"><span class="jive-xml-tag"><persistence></span>
    <span class="jive-xml-tag"><persistence-unit name="org.jbpm.persistence.jpa" transaction-type="JTA"></span>
        <span class="jive-xml-tag"><provider></span>org.hibernate.ejb.HibernatePersistence<span class="jive-xml-tag"></provider></span>
        <span class="jive-xml-tag"><jta-data-source></span>java:JbpmDS<span class="jive-xml-tag"></jta-data-source></span>
        <span class="jive-xml-tag"><class></span>org.drools.persistence.info.SessionInfo<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.persistence.processinstance.ProcessInstanceInfo<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.drools.persistence.info.WorkItemInfo<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.process.audit.ProcessInstanceLog<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.process.audit.NodeInstanceLog<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><class></span>org.jbpm.process.audit.VariableInstanceLog<span class="jive-xml-tag"></class></span>
        <span class="jive-xml-tag"><properties></span>
            <span class="jive-xml-tag"><property name="hibernate.max_fetch_depth" value="3"/></span>
            <span class="jive-xml-tag"><property name="hibernate.show_sql" value="true"/></span>
        <span class="jive-xml-tag"></properties></span>
    <span class="jive-xml-tag"></persistence-unit></span>
<span class="jive-xml-tag"></persistence></span>
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>JBPM init process:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">         @PersistenceUnit(name = <font color="red">"org.jbpm.persistence.jpa"</font>)
            <font color="navy"><b>private</b></font> EntityManagerFactory emf;
         
          ...
 
             KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
            org.drools.io.Resource resource = ResourceFactory.newClassPathResource(<font color="red">"Test.bpmn"</font>);
 
            env = KnowledgeBaseFactory.newEnvironment();
            kbuilder.add(resource, ResourceType.BPMN2);
            env.set(EnvironmentName.ENTITY_MANAGER_FACTORY, emf);
           
            kbase = kbuilder.newKnowledgeBase();   
   
            session = JPAKnowledgeService.newStatefulKnowledgeSession(kbase, null, env);          
            JPAWorkingMemoryDbLogger logger = <font color="navy"><b>new</b></font> JPAWorkingMemoryDbLogger(session);
 
            session.getWorkItemManager().registerWorkItemHandler(<font color="red">"EjbCall"</font>, <font color="navy"><b>new</b></font> EjbWorkItemHandler());
 
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I want to use that single StatefulKnowledgeSession within my application (session should be threadsafe). </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><pre class="jive-pre"><code class="jive-code jive-java">ProcessInstance instance = session.startProcess(<font color="red">"Test.bpmn"</font>, input);
</code></pre><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Thats working for one single client request. However, by starting multiple request to that single Session I will get the described error and I guess it is a threading issue.  </p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Any suggestions or remarks?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Cheers</p></div>
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<p style="margin: 0;">Reply to this message by <a href="http://community.jboss.org/message/613878#613878">going to Community</a></p>
<p style="margin: 0;">Start a new discussion in jBPM at <a href="http://community.jboss.org/choose-container!input.jspa?contentType=1&containerType=14&container=2034">Community</a></p>
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