topic Re: Async multi instance runs in 1 transaction in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181871#M135001 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>As a workaround, we placed a serviceTask in front of the exclusive gateway. This serviceTask now does the java call and sets a boolean variable that is used in the exclusive gateway. Now we dont get a timeout, as the serviceTask makes sure a different transaction is used.</SPAN><BR /><BR /><SPAN>Still I find it very strange that a callActivity of a multi-instance with async=true runs the exclusive gateway of ALL instances in 1 transaction…</SPAN><BR /><BR /></BODY></HTML> Wed, 18 Mar 2015 10:03:56 GMT stainii 2015-03-18T10:03:56Z Async multi instance runs in 1 transaction https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181870#M135000 Hello,We use Spring 3.2 and Activiti 5.17. Our transactionmanager has a timeout of 5 seconds. We have a multi-instance for 3 items and each item starts with an exclusive gateway check. This read-only check takes 2 seconds. We would expect that every item runs in a separate transaction. But we see a Tue, 17 Mar 2015 12:52:25 GMT https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181870#M135000 stainii 2015-03-17T12:52:25Z Re: Async multi instance runs in 1 transaction https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181871#M135001 <HTML><HEAD></HEAD><BODY><SPAN>Hello,</SPAN><BR /><BR /><SPAN>As a workaround, we placed a serviceTask in front of the exclusive gateway. This serviceTask now does the java call and sets a boolean variable that is used in the exclusive gateway. Now we dont get a timeout, as the serviceTask makes sure a different transaction is used.</SPAN><BR /><BR /><SPAN>Still I find it very strange that a callActivity of a multi-instance with async=true runs the exclusive gateway of ALL instances in 1 transaction…</SPAN><BR /><BR /></BODY></HTML> Wed, 18 Mar 2015 10:03:56 GMT https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181871#M135001 stainii 2015-03-18T10:03:56Z Re: Async multi instance runs in 1 transaction https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181872#M135002 <HTML><HEAD></HEAD><BODY><SPAN>Activiti does not start multiple threads/transactions for a multi instance. This is related to how Activiti is designed: </SPAN><A href="http://activiti.org/faq.html#WhatIsTheDifferenceBetweenProcessConcurrencyAndJavaConcurrency" rel="nofollow noopener noreferrer">http://activiti.org/faq.html#WhatIsTheDifferenceBetweenProcessConcurrencyAndJavaConcurrency</A><BR /><BR /><SPAN>I'm assuming this is a multi instance subprocess? If so, it might help to make the elements in the subprocess async (haven't tried it)?</SPAN><BR /><BR /></BODY></HTML> Tue, 24 Mar 2015 12:42:37 GMT https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181872#M135002 jbarrez 2015-03-24T12:42:37Z Re: Async multi instance runs in 1 transaction https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181873#M135003 <HTML><HEAD></HEAD><BODY><SPAN>Making the elements in the multi instace subprocess async did work, indeed. However, it seems that there is still a timeout due to a lot of write queries to the Activiti history tables, which all seemed to happen in 1 transaction.</SPAN><BR /><BR /><SPAN>We solved this problem, by not starting 1 process which starts 1500 muli-instances, but by starting the 1500 multi-instances ourselves in a transactionless EJB.</SPAN><BR /><BR /><SPAN>Thank you for your reply!</SPAN></BODY></HTML> Tue, 24 Mar 2015 13:25:57 GMT https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181873#M135003 stainii 2015-03-24T13:25:57Z Re: Async multi instance runs in 1 transaction https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181874#M135004 <HTML><HEAD></HEAD><BODY><SPAN>1500 multi instances does produce quite some data on the default history level <span class="lia-unicode-emoji" title=":winking_face:">😉</span></SPAN></BODY></HTML> Tue, 24 Mar 2015 13:56:18 GMT https://connect.hyland.com/t5/alfresco-archive/async-multi-instance-runs-in-1-transaction/m-p/181874#M135004 jbarrez 2015-03-24T13:56:18Z