Akka.Kafka - 警告消息 - 恢复分区

Question

在恢复所有主题的分区时，我会不断收到调试消息。如下所示。此消息每毫秒在我的服务器上连续打印一次。

08:44:34.850 [default-akka.kafka.default-dispatcher-10] DEBUG o.a.k.clients.consumer.KafkaConsumer - Resuming partition test222-7
08:44:34.850 [default-akka.kafka.default-dispatcher-10] DEBUG o.a.k.clients.consumer.KafkaConsumer - Resuming partition test222-6
08:44:34.850 [default-akka.kafka.default-dispatcher-10] DEBUG o.a.k.clients.consumer.KafkaConsumer - Resuming partition test222-9
08:44:34.850 [default-akka.kafka.default-dispatcher-10] DEBUG o.a.k.clients.consumer.KafkaConsumer - Resuming partition test222-8

这个 这是代码

val zookeeperHost = "localhost"
val zookeeperPort = "9092"
// Kafka queue settings
 val consumerSettings = ConsumerSettings(system, new ByteArrayDeserializer, new StringDeserializer)
       .withBootstrapServers(zookeeperHost + ":" + zookeeperPort)
       .withGroupId((groupName))
       .withProperty(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "latest")

 // Streaming the Messages from Kafka queue
 Consumer.committableSource(consumerSettings, Subscriptions.topics(topicName))
     .map(msg => {
       consumed(msg.record.value)
     })
     .runWith(Sink.ignore)

请帮助正确进行分区以停止调试消息。

Answer 1

似乎reactive-kafka code 在开始获取之前恢复了每个分区：

consumer.assignment().asScala.foreach { tp =>
  if (partitionsToFetch.contains(tp)) consumer.resume(java.util.Collections.singleton(tp))
  else consumer.pause(java.util.Collections.singleton(tp))
}
def tryPoll{...}
checkNoResult(tryPoll(0))

如果分区之前没有暂停，KafkaConsumer.resume 方法是无操作的。