docker - 无法从NiFi发送到Kafka

Question

我正在Windows的Docker中运行，这是我的NiFi设置:



PublishKafka处理器的详细信息:


ConsumeKafka处理器的详细信息:


这是我的docker-compose文件(注意:192.168.1.50是我的静态内部主机IP):

version: '3'
services:
  Jenkins:
    container_name: Jenkins
    restart: on-failure
    depends_on:
    - NiFi
    image: jenkins:latest
    ports:
      - "32779:50000"
      - "32780:8080"
  NiFi:
    container_name: NiFi
    image: xemuliam/nifi:latest
    restart: on-failure
    depends_on:
    - kafka
    ports:
      - "32784:8089"
      - "32783:8080"
      - "32782:8081"
      - "32781:8443"
    labels:
      com.foo: myLabel
  zookeeper:
    container_name: Zookeeper
    image: wurstmeister/zookeeper
    restart: on-failure
    #network_mode: host
    ports:
      - "2181:2181"
  kafka:
    #container_name: Kafka
    image: wurstmeister/kafka
    depends_on:
    - zookeeper
    #restart: on-failure
    #network_mode: host
    ports:
      - "9092"
    environment:
      #KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://192.168.1.50:9092
      #KAFKA_AUTO_CREATE_TOPICS_ENABLE: "true"
      
      KAFKA_CREATE_TOPICS: "MainIngestionTopic:1:1"
      KAFKA_ZOOKEEPER_CONNECT: 192.168.1.50:2181
      KAFKA_ADVERTISED_LISTENERS: INSIDE://:9092,OUTSIDE://192.168.1.50:9094
      KAFKA_LISTENERS: INSIDE://:9092,OUTSIDE://:9094
      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: INSIDE:PLAINTEXT,OUTSIDE:PLAINTEXT
      KAFKA_INTER_BROKER_LISTENER_NAME: INSIDE
      
    volumes:
      - ./var/run/docker.sock:/var/run/docker.sock

当我拖尾Kafka容器日志时，可以看到我的主题是通过docker-compose成功创建的。

邮件已成功传递到NiFi中的PublishKafka处理器，但随后无法发布。订阅相同主题的ConsumeKafka处理器永远不会收到该消息。

NiFi容器日志显示以下内容:

2018-05-28 19:46:18,792 ERROR [Timer-Driven Process Thread-1] o.a.n.p.kafka.pubsub.PublishKafka PublishKafka[id=b2503f49-acc9-38f5-86f9-5029e2768b68] Failed to send all message for StandardFlowFileRecord[uuid=b3f6f818-34d3-42a9-9d6e-636cf17eb138,claim=StandardContentClaim [resourceClaim=StandardResourceClaim[id=1527533792820-1, container=default, section=1], offset=5, length=5],offset=0,name=8151630985100,size=5] to Kafka; routing to failure due to org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 5000 ms.: org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 5000 ms.


org.apache.kafka.common.errors.TimeoutException: Failed to update metadata after 5000 ms.


2018-05-28 19:46:18,792 INFO [Timer-Driven Process Thread-1] o.a.kafka.clients.producer.KafkaProducer Closing the Kafka producer with timeoutMillis = 5000 ms.

我尝试从Kafka容器本身内部发布到该主题，但是也失败了:



我已经整理了文档并阅读了许多线程来尝试解决此问题，但这仍然是一个问题。任何帮助将不胜感激!

Answer 1

您不能在NiFi的“Kafka Brokers”属性中使用localhost，除非该代理实际在与NiFi运行的主机相同的主机上运行。由于每个服务都在docker容器中，因此kafka的容器必须具有可以使用的特定主机名或ip。