topic Re: updating activiti in a clustered environment in Alfresco Archive https://connect.hyland.com/t5/alfresco-archive/updating-activiti-in-a-clustered-environment/m-p/225103#M178233 <HTML><HEAD></HEAD><BODY><SPAN>DB will block update if something is going on for changing objects. In worst case it can produce inconsistent DB. It's also possible high load on processes/DB will postpone update infinitely.</SPAN><BR /><SPAN>If update is done and something vital is changed, "old" cluster nodes will stop working normally up to restart.</SPAN><BR /><BR /><SPAN>I tried update in 2 nodes cluster from activiti 5.19 to activiti 5.20. I worked, but not smoothly. Both nodes tried to make update of DB and after all I had to restart them again.</SPAN><BR /><BR /><SPAN>IMHO you should shut down every node, upgrade/start one node to make DB update and only then then update/start other nodes.</SPAN></BODY></HTML> Fri, 26 Aug 2016 10:30:32 GMT warper 2016-08-26T10:30:32Z updating activiti in a clustered environment https://connect.hyland.com/t5/alfresco-archive/updating-activiti-in-a-clustered-environment/m-p/225102#M178232 Hi,I have a question regarding the update behavior of the db schema in activiti. I think I understood how the mechanism works in principle: you can specify the property 'databaseSchemaUpdate' and set it to 'true'. On the next startup of the ProcessEngine, this will execute the necessary db operation Thu, 25 Aug 2016 14:39:15 GMT https://connect.hyland.com/t5/alfresco-archive/updating-activiti-in-a-clustered-environment/m-p/225102#M178232 stefanhenke 2016-08-25T14:39:15Z Re: updating activiti in a clustered environment https://connect.hyland.com/t5/alfresco-archive/updating-activiti-in-a-clustered-environment/m-p/225103#M178233 <HTML><HEAD></HEAD><BODY><SPAN>DB will block update if something is going on for changing objects. In worst case it can produce inconsistent DB. It's also possible high load on processes/DB will postpone update infinitely.</SPAN><BR /><SPAN>If update is done and something vital is changed, "old" cluster nodes will stop working normally up to restart.</SPAN><BR /><BR /><SPAN>I tried update in 2 nodes cluster from activiti 5.19 to activiti 5.20. I worked, but not smoothly. Both nodes tried to make update of DB and after all I had to restart them again.</SPAN><BR /><BR /><SPAN>IMHO you should shut down every node, upgrade/start one node to make DB update and only then then update/start other nodes.</SPAN></BODY></HTML> Fri, 26 Aug 2016 10:30:32 GMT https://connect.hyland.com/t5/alfresco-archive/updating-activiti-in-a-clustered-environment/m-p/225103#M178233 warper 2016-08-26T10:30:32Z