Version migration of a running process

dp — Mon, 06 May 2013 14:15:44 GMT

Hi,I need to migrate a running process instance to a new process definition version.I saw that I can achieve this directly updating the act_ge_bytearray table (bytes_ column) but I don't think this is a safe solution.Is there a right way of doing this thing? (an APi..maybe)Thank you for your help!

Re: Version migration of a running process

frederikherema1 — Wed, 08 May 2013 07:32:09 GMT

There is an INTERNAL command that you can run at you're own risk which does some minimal compatibility checking of old running activities: org.activiti.engine.impl.cmd.SetProcessDefinitionVersionCmd


/**
 * {@link Command} that changes the process definition version of an existing
 * process instance.
 * 
 * Warning: This command will NOT perform any migration magic and simply set the
 * process definition version in the database, assuming that the user knows,
 * what he or she is doing.
 * 
 * This is only useful for simple migrations. The new process definition MUST
 * have the exact same activity id to make it still run.
 * 
 * Furthermore, activities referenced by sub-executions and jobs that belong to
 * the process instance MUST exist in the new process definition version.
 * 
 * The command will fail, if there is already a {@link ProcessInstance} or
 * {@link HistoricProcessInstance} using the new process definition version and
 * the same business key as the {@link ProcessInstance} that is to be migrated.
 * 
 * If the process instance is not currently waiting but actively running, then
 * this would be a case for optimistic locking, meaning either the version
 * update or the "real work" wins, i.e., this is a race condition.
 * 
 * @see http://forums.activiti.org/en/viewtopic.php?t=2918
 * @author Falko Menge
 */

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Version migration of a running process

Re: Version migration of a running process