after running for a while without problems, the process engine throws me this exception
"ENGINE-03005 Execution of 'DELETE MessageEntity[960029c7-e522-11e5-959e-005056800def]' failed. Entity was updated by another transaction concurrently."
while it tried to execute a job. I did not explicitly received it in cockpit but through act_ru_job table. Can someone explain it to me? And how can i avoid it? In my opinion, it has something to do with the job executor.
Another issue with job executor is how he picks up job to process. I observed table Act_ru_job for a while and i could see that some jobs still have the column RETRIES_= 1, it means it can be executed. Their column LOCK_EXP_TIMES is continuously updated but nothing happened. Can someone also explain this issue for me?
Thanks you all in advance.
Best Regard,
Nam