topic Re: OptimisticLocking exception when try to update execution-variable in Alfresco Archive

OptimisticLocking exception when try to update execution-variable

shreyashp — Sun, 07 Feb 2016 09:10:11 GMT

Hi,I have setup a spring activiti engine.I do a ProcessEngines.getDefaultProcessEngine(), will i get the same spring engine instance ?How many job-executors will i have ? (i have my default job-executor turned on in config, async-executor is off)Now the issue:I startProceInstanceByKey(), and set a v

Re: OptimisticLocking exception when try to update execution-variable

shreyashp — Sun, 07 Feb 2016 09:23:04 GMT

StackTrace:
org.activiti.engine.ActivitiOptimisticLockingException: ByteArrayEntity[id=592, name=var-envelop, size=335] was updated by another transaction concurrently
at org.activiti.engine.impl.db.DbSqlSession.flushUpdates(DbSqlSession.java:875)
at org.activiti.engine.impl.db.DbSqlSession.flush(DbSqlSession.java:614)
at org.activiti.engine.impl.interceptor.CommandContext.flushSessions(CommandContext.java:212)
at org.activiti.engine.impl.interceptor.CommandContext.close(CommandContext.java:138)
at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:66)
at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45)
at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:31)
at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:40)
at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:35)
at org.activiti.engine.impl.RuntimeServiceImpl.setVariable(RuntimeServiceImpl.java:186)

Re: OptimisticLocking exception when try to update execution-variable

martin_grofcik — Mon, 08 Feb 2016 08:09:14 GMT

Hi,

could you reproduce the issue in the jUnit test please?

https://forums.activiti.org/content/sticky-how-write-unit-test

Regards
Martin

Re: OptimisticLocking exception when try to update execution-variable

jbarrez — Tue, 09 Feb 2016 07:54:47 GMT

About your questions:

"I do a ProcessEngines.getDefaultProcessEngine(), will i get the same spring engine instance ?"

Yes. It will return the same ProcessEngine instance.

"How many job-executors will i have ? (i have my default job-executor turned on in config, async-executor is off)"

One. The 'old' job executor will be used (async executor is the new one).