topic Cluster of Embedded Activti engines in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/cluster-of-embedded-activti-engines/m-p/216315#M169445 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>I am working on a POC to show our client that Activiti can run in a cluster environnement.</SPAN><BR /><BR /><SPAN>I have a simple BPMN process that is started with a timer.&nbsp; This process basically :</SPAN><BR /><BR /><SPAN>Task 1) poll a list of object (Country names)</SPAN><BR /><BR /><SPAN>Task 2) a multi instance sub process loop on the collection from task 1 and "visit" each country</SPAN><BR /><BR /><SPAN>Task 3) outside the multi instance sub-process, only display the list of visited Countries</SPAN><BR /><BR /><SPAN>Now FYI, this is an embedded Spring boot project.</SPAN><BR /><BR /><SPAN>So i start 2 different java process with the jar built.</SPAN><BR /><BR /><SPAN>Say : Server 1 and Server 2&nbsp; (both access the same Activiti DB)</SPAN><BR /><BR /><SPAN>The behavior i see is :</SPAN><BR /><BR /><SPAN>First execution :</SPAN><BR /><SPAN>Server 1 will execute the process</SPAN><BR /><SPAN>Server 2 run but do nothing</SPAN><BR /><BR /><SPAN>Second execution:</SPAN><BR /><SPAN>Server 1 execute the process</SPAN><BR /><SPAN>Server 2 run but do nothing</SPAN><BR /><BR /><SPAN>…..</SPAN><BR /><BR /><SPAN>Now if i kill Server 1… i see that Server 2 will eventually wake up and execute the process. </SPAN><BR /><BR /><SPAN>So my understanding is of this internal activiti behavior is kinf of : hot / warm</SPAN><BR /><BR /><SPAN>So is it normal that Server 1 will always execute the process and Server 2 will just sit back and wait.</SPAN><BR /><BR /><SPAN>My Client is asking if its possible to be more like : hot /hot.&nbsp; Meaning that randomly i should see Server 1 and Server 2 executing the process (not at the same obviously)</SPAN><BR /><BR /><SPAN>It this scenario possible?</SPAN><BR /><BR /><SPAN>Regards</SPAN><BR /><BR /></BODY></HTML> Fri, 19 Feb 2016 18:13:19 GMT bcampeau1 2016-02-19T18:13:19Z Cluster of Embedded Activti engines https://connect.hyland.com/t5/alfresco-archive/cluster-of-embedded-activti-engines/m-p/216315#M169445 Hello,I am working on a POC to show our client that Activiti can run in a cluster environnement.I have a simple BPMN process that is started with a timer.&nbsp; This process basically :Task 1) poll a list of object (Country names)Task 2) a multi instance sub process loop on the collection from task 1 and Fri, 19 Feb 2016 18:13:19 GMT https://connect.hyland.com/t5/alfresco-archive/cluster-of-embedded-activti-engines/m-p/216315#M169445 bcampeau1 2016-02-19T18:13:19Z Re: Cluster of Embedded Activti engines https://connect.hyland.com/t5/alfresco-archive/cluster-of-embedded-activti-engines/m-p/216316#M169446 <HTML><HEAD></HEAD><BODY><SPAN>Hi Ben,</SPAN><BR /><BR /><SPAN>yes it is possible. I would say that in your case only one server locks the job and that's why the second one can not get the job to execute it. To present the functionality I would create several different jobs and let both job executors execute them.</SPAN><BR /><BR /><SPAN>Regards</SPAN><BR /><SPAN>Martin</SPAN></BODY></HTML> Mon, 22 Feb 2016 09:48:57 GMT https://connect.hyland.com/t5/alfresco-archive/cluster-of-embedded-activti-engines/m-p/216316#M169446 martin_grofcik 2016-02-22T09:48:57Z