topic How to model a long-running java task? in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/how-to-model-a-long-running-java-task/m-p/194017#M147147 <HTML><HEAD></HEAD><BODY><SPAN>I have a long running java task (runs longer than 5 minutes) that generates a ActivitiOptimisticLockingException because a 2nd instance of the process is started after 5 minutes – well before the 1st instance of the process has a chance to finish.</SPAN><BR /><BR /><SPAN>This thread (</SPAN><A href="http://forums.activiti.org/content/does-job-executor-launch-service-tasks-more-once" rel="nofollow noopener noreferrer">http://forums.activiti.org/content/does-job-executor-launch-service-tasks-more-once</A><SPAN>) mentions the same problem, and in that thread there is mention of a send/receive solution – but there is no more explanation of what that means.</SPAN><BR /><BR /><SPAN>I've created a workaround where I have my own custom job executor that sets a 30 minute threshold for process completion instead of the default 5 minutes that works, but that doesn't seem like the ideal approach. Here is the bpm for the process:</SPAN><BR /><BR /><PRE class="language-none line-numbers"><CODE><BR />&nbsp;&nbsp;&nbsp; &lt;process id="bankImportJob" name="Bank Import Job" isExecutable="true"&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;startEvent id="startevent1" name="Start" &gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;timerEventDefinition&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;!– Run once a day at 7:00am. –&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;timeCycle&gt;0 0 7 ? * *&lt;/timeCycle&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/timerEventDefinition&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/startEvent&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;serviceTask id="bankImportServiceTask" name="Bank Import" activiti:class="com.company.BankImportJob" /&gt;<BR /><BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow1" sourceRef="startevent1" targetRef="bankImportServiceTask" /&gt;<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;sequenceFlow id="flow2" sourceRef="bankImportServiceTask" targetRef="theEnd" /&gt;<BR /><BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;endEvent id="theEnd" /&gt;<BR />&nbsp;&nbsp;&nbsp; &lt;/process&gt;<BR /><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN></CODE></PRE><SPAN> </SPAN><BR /><BR /><SPAN>What is a good/right way to model this so that I don't have to worry about how long the bankImportServiceTask runs?</SPAN><BR /></BODY></HTML> Tue, 17 Jun 2014 21:34:03 GMT jvoris 2014-06-17T21:34:03Z How to model a long-running java task? https://connect.hyland.com/t5/alfresco-archive/how-to-model-a-long-running-java-task/m-p/194017#M147147 I have a long running java task (runs longer than 5 minutes) that generates a ActivitiOptimisticLockingException because a 2nd instance of the process is started after 5 minutes – well before the 1st instance of the process has a chance to finish.This thread (http://forums.activiti.org/content/does- Tue, 17 Jun 2014 21:34:03 GMT https://connect.hyland.com/t5/alfresco-archive/how-to-model-a-long-running-java-task/m-p/194017#M147147 jvoris 2014-06-17T21:34:03Z Re: How to model a long-running java task? https://connect.hyland.com/t5/alfresco-archive/how-to-model-a-long-running-java-task/m-p/194018#M147148 <HTML><HEAD></HEAD><BODY><SPAN>The default setting of the job executor is that it will start retrying a job if it's not completed within 5 minutes. </SPAN><BR /><SPAN>So your solution to override that for your use case is perfectly fine. Another way to solve this is via the send/receive task solution you mentioned. This is described in this blogpost:</SPAN><BR /><BR /><A href="http://bpmn20inaction.blogspot.nl/2012/12/implement-parallel-execution-in-activiti.html" rel="nofollow noopener noreferrer">http://bpmn20inaction.blogspot.nl/2012/12/implement-parallel-execution-in-activiti.html</A><BR /><BR /><SPAN>Best regards, </SPAN></BODY></HTML> Thu, 19 Jun 2014 19:17:17 GMT https://connect.hyland.com/t5/alfresco-archive/how-to-model-a-long-running-java-task/m-p/194018#M147148 trademak 2014-06-19T19:17:17Z