[job-0] INFO StandAloneJobContainerCommunicator - Total 39900 records, 3480886 bytes | Speed 339.93KB/s, 3990 records/s | Error 0 records, 0 bytes | All Task WaitWriterTime 1.736s | All Task WaitReaderTime 3.994s | Percentage 100.00%
datax日志看下，是每条记录的大小很大吗？