load test and OptimisticLockingFailureException comes up

[paulaqian]

I tried some load test(1000 records) using the split processing. The chunk size is set to 1. Multiple threads are used and OptimisticLockingFailureException is thrown. If I increased the chunk size then the issue is just gone. But what if I need the chunk size to be one and need it to be run in a multithread processing env?

Thanks,


The trace is as following:
org.springframework.dao.OptimisticLockingFailureEx ception: Attempt to update step execution id=2 with out of date version (1484)
at org.springframework.batch.execution.repository.dao .JdbcStepDao.update(JdbcStepDao.java:566)
at org.springframework.batch.execution.repository.Sim pleJobRepository.saveOrUpdate(SimpleJobRepository. java:262)
at org.springframework.batch.execution.step.simple.Si mpleStepExecutor$1.doInIteration(SimpleStepExecuto r.java:227)
at org.springframework.batch.repeat.support.TaskExecu torRepeatTemplate$ExecutingRunnable.run(TaskExecut orRepeatTemplate.java:224)
at java.util.concurrent.ThreadPoolExecutor$Worker.run Task(ThreadPoolExecutor.java:650)
at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:675)
at java.lang.Thread.run(Thread.java:595)