Spring Batch: org.springframework.batch.item.ReaderNotOpenException: Reader must be open before it can be read

Question

I read SO related questions but the solutions don\'t work for me.

I get the org.springframework.batch.item.ReaderNotOpenException: Reader must be open before i

Answer 1

I think you should increase your chunk size in processPlayerStats() step bean class, i.e from chunk(10) to chunk(100/more may be).