为什么我应该使用 docker image "confluentinc/kafka" 到 kafka 集群?

why should i use docker image "confluentinc/kafka" to kafka cluster?

我做到了

docker-compose up

用于我本地的 kafka 集群。

每当我想制作主题时,检索我拥有的主题或搜索存储在我使用的主题中的数据

docker run --net=host --rm confluentinc/cp-kafka:latest kafka-topics --describe --topic bar --zookeeper localhost:32181

官方kafka集群部署站点

但是我真的想在我的本地存储中使用 Kafka 而不是像

这样的 kafka docker 图像
kafka-topics --describe --topic bar --zookeeper localhost:32181

如果我使用上面的代码,我会遇到这个错误。

Exception in thread "main" kafka.zookeeper.ZooKeeperClientTimeoutException: Timed out waiting for connection while in state: CONNECTING
        at kafka.zookeeper.ZooKeeperClient.$anonfun$waitUntilConnected(ZooKeeperClient.scala:258)

此外,如果我检查 netstat -anp tcp 没有来自 kafka 集群的 LISTEN 端口。

我该怎么办? 请让我知道我现在缺少的关于 docker 的内容(因为我是 docker 的新手 :( )

这是yaml配置

---
version: '2'
services:
  zookeeper-1:
    image: confluentinc/cp-zookeeper:latest
    environment:
      ZOOKEEPER_SERVER_ID: 1
      ZOOKEEPER_CLIENT_PORT: 22181
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_INIT_LIMIT: 5
      ZOOKEEPER_SYNC_LIMIT: 2
      ZOOKEEPER_SERVERS: localhost:22888:23888;localhost:32888:33888;localhost:42888:43888
    network_mode: host
    extra_hosts:
      - "moby:127.0.0.1"

  zookeeper-2:
    image: confluentinc/cp-zookeeper:latest
    environment:
      ZOOKEEPER_SERVER_ID: 2
      ZOOKEEPER_CLIENT_PORT: 32181
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_INIT_LIMIT: 5
      ZOOKEEPER_SYNC_LIMIT: 2
      ZOOKEEPER_SERVERS: localhost:22888:23888;localhost:32888:33888;localhost:42888:43888
    network_mode: host
    extra_hosts:
      - "moby:127.0.0.1"

  zookeeper-3:
    image: confluentinc/cp-zookeeper:latest
    environment:
      ZOOKEEPER_SERVER_ID: 3
      ZOOKEEPER_CLIENT_PORT: 42181
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_INIT_LIMIT: 5
      ZOOKEEPER_SYNC_LIMIT: 2
      ZOOKEEPER_SERVERS: localhost:22888:23888;localhost:32888:33888;localhost:42888:43888
    network_mode: host
    extra_hosts:
      - "moby:127.0.0.1"

  kafka-1:
    image: confluentinc/cp-kafka:latest
    network_mode: host
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3
    environment:
      KAFKA_BROKER_ID: 1
      KAFKA_ZOOKEEPER_CONNECT: localhost:22181,localhost:32181,localhost:42181
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:19092
    extra_hosts:
      - "moby:127.0.0.1"

  kafka-2:
    image: confluentinc/cp-kafka:latest
    network_mode: host
"docker-compose.yml" 83L, 2321C

如果您的主机上是 运行 Kafka(和 Zookeeper),那么,不,您根本不需要 Docker。

您不应在容器的任何连接字符串中使用 localhost,而应使用容器的外部服务名称并从配置中删除 network_mode

注意:一台机器上的多个 brokers/zookeepers 没有任何帮助。

or search data stored in the topic

你不应该使用 zookeeper 来做那个