用 slick 流式读取 mysql 一个大表 700w, 在 map 的时候计数,发现到 360w 就停了, 请问下这是什么原因?
val source: Source[Event, NotUsed] = Slick.source(query1) val sink: Sink[ProducerRecord[String, Event], Future[Done]] = Producer.plainSink(p) var counter = 0; val done: Future[Done] = source .map( e => { counter += 1 println(counter) new ProducerRecord(topic, e.sid, EventFactory.build_event(e)) } ).runWith(sink)