Kafka集群模式端口配置

问题描述 投票：1回答：2

我正在尝试使用3个zookeeper和3个kafka节点部署docker kafka集群。 kafka节点不断打印出以下错误：

[main-SendThread(zookeeper-1:2181)] INFO org.apache.zookeeper.ClientCnxn - Opening socket connection to server zookeeper-1/10.0.0.5:2181. Will not attempt to authenticate using SASL (unknown error)
[main-SendThread(zookeeper-1:2181)] INFO org.apache.zookeeper.ClientCnxn - Socket connection established to zookeeper-1/10.0.0.5:2181, initiating session
[main-SendThread(zookeeper-1:2181)] INFO org.apache.zookeeper.ClientCnxn - Unable to read additional data from server sessionid 0x0, likely server has closed socket, closing socket connection and attempting reconnect

当zookeeper节点继续打印时：

WARN Cannot open channel to 1 at election address
zookeeper-1/10.0.0.5:3888 (org.apache.zookeeper.server.quorum.QuorumCnxManager)
    java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:558)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:610)
        at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:838)
        at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:957)
    [2019-03-01 17:24:30,930] INFO Resolved hostname: zookeeper-1 to address: zookeeper-1/10.0.0.5 (org.apache.zookeeper.server.quorum.QuorumPeer)
    [2019-03-01 17:24:30,931] WARN Cannot open channel to 2 at election address zookeeper-2/10.0.0.7:3888 (org.apache.zookeeper.server.quorum.QuorumCnxManager)
    java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectOne(QuorumCnxManager.java:558)
        at org.apache.zookeeper.server.quorum.QuorumCnxManager.connectAll(QuorumCnxManager.java:610)
        at org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:838)
        at org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:957)

看起来像zookeeper节点不能相互通信，但我检查了几次docker-compose yaml，我找不到奇怪的。有人能帮助我吗？

docker-compose.yaml：

version: '3.3'

networks:
  kafka_example:
    driver: overlay

services:
  zookeeper-1:
    image: confluentinc/cp-zookeeper:5.0.1
    volumes:
      - '/volumedockerkafka/zookeeper-1/zookeeper_data:/var/lib/zookeeper:rw'  # mount point
      - '/volumedockerkafka/zookeeper-1/zookeeper_etc:/etc/zookeeper:rw'  # mount point
    environment:
      ZOOKEEPER_SERVER_ID: 1
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_INIT_LIMIT: 5
      ZOOKEEPER_SYNC_LIMIT: 2
    networks:
      - kafka_example

  zookeeper-2:
    image: confluentinc/cp-zookeeper:5.0.1
    volumes:
      - '/volumedockerkafka/zookeeper-2/zookeeper_data:/var/lib/zookeeper:rw'  # mount point
      - '/volumedockerkafka/zookeeper-2/zookeeper_etc:/etc/zookeeper:rw'  # mount point
    environment:
      ZOOKEEPER_SERVER_ID: 2
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_INIT_LIMIT: 5
      ZOOKEEPER_SYNC_LIMIT: 2
    networks:
      - kafka_example

  zookeeper-3:
    image: confluentinc/cp-zookeeper:5.0.1
    volumes:
      - '/volumedockerkafka/zookeeper-3/zookeeper_data:/var/lib/zookeeper:rw'  # mount point
      - '/volumedockerkafka/zookeeper-3/zookeeper_etc:/etc/zookeeper:rw'  # mount point
    environment:
      ZOOKEEPER_SERVER_ID: 3
      ZOOKEEPER_CLIENT_PORT: 2181
      ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888
      ZOOKEEPER_TICK_TIME: 2000
      ZOOKEEPER_INIT_LIMIT: 5
      ZOOKEEPER_SYNC_LIMIT: 2
    networks:
      - kafka_example

  message_queue_kafka-1:
    image: confluentinc/cp-kafka:5.0.1
    volumes:
      - '/volumedockerkafka/kafka-1/kafka_data:/var/lib/kafka/data:rw'  # mount point
      - '/volumedockerkafka/kafka-1/kafka_etc:/etc/kafka:rw'
    environment:
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper-1:2181,zookeeper-2:2181,zookeeper-3:2181'
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-1:9092
      KAFKA_BROKER_ID: 1
      KAFKA_SESSION_TIMEOUT_MS: 60000
      KAFKA_HEARTBEAT_INTERVAL_MS: 20000
      KAFKA_REBALANCE_TIMEOUT_MS: 300000
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3
    networks:
      - kafka_example

  message_queue_kafka-2:
    image: confluentinc/cp-kafka:5.0.1
    volumes:
      - '/volumedockerkafka/kafka-2/kafka_data:/var/lib/kafka/data:rw'  # mount point
      - '/volumedockerkafka/kafka-2/kafka_etc:/etc/kafka:rw'
    environment:
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper-1:2181,zookeeper-2:2181,zookeeper-3:2181'
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-2:9092
      KAFKA_BROKER_ID: 2
      KAFKA_SESSION_TIMEOUT_MS: 60000
      KAFKA_HEARTBEAT_INTERVAL_MS: 20000
      KAFKA_REBALANCE_TIMEOUT_MS: 300000
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3
    networks:
      - kafka_example

  message_queue_kafka-3:
    image: confluentinc/cp-kafka:5.0.1
    volumes:
      - '/volumedockerkafka/kafka-3/kafka_data:/var/lib/kafka/data:rw'  # mount point
      - '/volumedockerkafka/kafka-3/kafka_etc:/etc/kafka:rw'
    environment:
      KAFKA_ZOOKEEPER_CONNECT: 'zookeeper-1:2181,zookeeper-2:2181,zookeeper-3:2181'
      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-3:9092
      KAFKA_BROKER_ID: 3
      KAFKA_SESSION_TIMEOUT_MS: 60000
      KAFKA_HEARTBEAT_INTERVAL_MS: 20000
      KAFKA_REBALANCE_TIMEOUT_MS: 300000
    depends_on:
      - zookeeper-1
      - zookeeper-2
      - zookeeper-3
    networks:
      - kafka_example
docker apache-kafka apache-zookeeper confluent
2个回答
3
投票

最后我在这里得到了奇怪的结果：https://forums.docker.com/t/cannot-get-zookeeper-to-work-running-in-docker-using-swarm-mode/27109/2

为了让zookeeper集群工作，看起来，当KAFKA_BROKER_ID为x时，您需要将0.0.0.0指定为主机名x。它似乎与端口号无关，因为它们是不同的机器（虚拟地）。

这是我的新撰写文件：

version: '3.3'

networks:
  kafka_example:
      driver: overlay

services:
  zookeeper-1:
      image: confluentinc/cp-zookeeper:5.0.1
      volumes:
        - '/volumedockerkafka/zookeeper-1/zookeeper_data:/var/lib/zookeeper:rw'
        - '/volumedockerkafka/zookeeper-1/zookeeper_etc:/etc/zookeeper:rw'
      environment:
        ZOOKEEPER_SERVER_ID: 1
        ZOOKEEPER_CLIENT_PORT: 2181
        ZOOKEEPER_SERVERS: 0.0.0.0:2888:3888;zookeeper-2:2888:3888;zookeeper-3:2888:3888
        ZOOKEEPER_TICK_TIME: 2000
        ZOOKEEPER_INIT_LIMIT: 5
        ZOOKEEPER_SYNC_LIMIT: 2
        ZOOKEEPER_MAX_CLIENT_CNXNS: 200
      networks:
      - kafka_example

  zookeeper-2:
      image: confluentinc/cp-zookeeper:5.0.1
      volumes:
        - '/volumedockerkafka/zookeeper-2/zookeeper_data:/var/lib/zookeeper:rw'
        - '/volumedockerkafka/zookeeper-2/zookeeper_etc:/etc/zookeeper:rw'
      environment:
        ZOOKEEPER_SERVER_ID: 2
        ZOOKEEPER_CLIENT_PORT: 2181
        ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;0.0.0.0:2888:3888;zookeeper-3:2888:3888
        ZOOKEEPER_TICK_TIME: 2000
        ZOOKEEPER_INIT_LIMIT: 5
        ZOOKEEPER_SYNC_LIMIT: 2
        ZOOKEEPER_MAX_CLIENT_CNXNS: 200
      networks:
        - kafka_example

  zookeeper-3:
      image: confluentinc/cp-zookeeper:5.0.1
      volumes:
        - '/volumedockerkafka/zookeeper-3/zookeeper_data:/var/lib/zookeeper:rw'
        - '/volumedockerkafka/zookeeper-3/zookeeper_etc:/etc/zookeeper:rw'
      environment:
        ZOOKEEPER_SERVER_ID: 3
        ZOOKEEPER_CLIENT_PORT: 2181
        ZOOKEEPER_SERVERS: zookeeper-1:2888:3888;zookeeper-2:2888:3888;0.0.0.0:2888:3888
        ZOOKEEPER_TICK_TIME: 2000
        ZOOKEEPER_INIT_LIMIT: 5
        ZOOKEEPER_SYNC_LIMIT: 2
        ZOOKEEPER_MAX_CLIENT_CNXNS: 200
      networks:
        - kafka_example

  message_queue_kafka-1:
      image: confluentinc/cp-kafka:5.0.1
      volumes:
        - '/volumedockerkafka/kafka-1/kafka_data:/var/lib/kafka/data:rw'
        - '/volumedockerkafka/kafka-1/kafka_etc:/etc/kafka:rw'
      environment:
        KAFKA_BROKER_ID: 1
        KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:2181,zookeeper-2:2181,zookeeper-3:2181
        KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-1:9092
        KAFKA_SESSION_TIMEOUT_MS: 60000
        KAFKA_HEARTBEAT_INTERVAL_MS: 20000
        KAFKA_REBALANCE_TIMEOUT_MS: 300000
      depends_on:
        - zookeeper-1
        - zookeeper-2
        - zookeeper-3
      networks:
        - kafka_example

  message_queue_kafka-2:
      image: confluentinc/cp-kafka:5.0.1
      volumes:
        - '/volumedockerkafka/kafka-2/kafka_data:/var/lib/kafka/data:rw'
        - '/volumedockerkafka/kafka-2/kafka_etc:/etc/kafka:rw'
      environment:
        KAFKA_BROKER_ID: 2
        KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:2181,zookeeper-2:2181,zookeeper-3:2181
        KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-2:9092
        KAFKA_SESSION_TIMEOUT_MS: 60000
        KAFKA_HEARTBEAT_INTERVAL_MS: 20000
        KAFKA_REBALANCE_TIMEOUT_MS: 300000
      depends_on:
        - zookeeper-1
        - zookeeper-2
        - zookeeper-3
      networks:
        - kafka_example

  message_queue_kafka-3:
      image: confluentinc/cp-kafka:5.0.1
      volumes:
        - '/volumedockerkafka/kafka-3/kafka_data:/var/lib/kafka/data:rw'
        - '/volumedockerkafka/kafka-3/kafka_etc:/etc/kafka:rw'
      environment:
        KAFKA_BROKER_ID: 3
        KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:2181,zookeeper-2:2181,zookeeper-3:2181
        KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-3:9092
        KAFKA_SESSION_TIMEOUT_MS: 60000
        KAFKA_HEARTBEAT_INTERVAL_MS: 20000
        KAFKA_REBALANCE_TIMEOUT_MS: 300000
      depends_on:
        - zookeeper-1
        - zookeeper-2
        - zookeeper-3
      networks:
        - kafka_example
0
投票

我有一个类似的设置，3个动物园管理员和3个经纪人，它运作良好。我注意到三件事，从你的设置与我的不同，第二件我知道肯定是一个问题（我做了同样但没有工作）

  1. 对于ZOOKEEPER_SERVERS，您使用相同的端口组合为所有动物园管理员2888:3888。据我所知，你应该有不同的端口check this example as a reference。
  2. 您对所有zookeeper实例使用相同的ZOOKEEPER_CLIENT_PORT，考虑为每个实例使用不同的实例，也与ZOOKEEPER_SERVERS中使用的端口不同。
  3. 对于kafka服务，环境变量KAFKA_ZOOKEEPER_CONNECT的值用单引号引用，我不认为这是一个问题，但与其他配置有点不一致。

然后考虑更改ZOOKEEPER_SERVERS和ZOOKEEPER_CLIENT_PORT的值，例如更改为：

ZOOKEEPER_CLIENT_PORT: 22181
ZOOKEEPER_SERVERS: zookeeper-1:22888:23888;zookeeper-2:32888:33888;zookeeper-3:42888:43888

还记得相应地调整KAFKA_ZOOKEEPER_CONNECT的值：

KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:22181,zookeeper-2:32181,zookeeper-3:42181

clientPort端口以侦听客户端连接

server.X ...，记下每个服务器名称后面的两个端口号：“2888”和“3888”。对等方使用以前的端口连接到其他对等方。这种连接是必要的，以便对等方可以进行通信，例如，就更新的顺序达成一致。更具体地说，ZooKeeper服务器使用此端口将关注者连接到领导者。当新的领导者出现时，跟随者使用此端口打开与领导者的TCP连接。由于默认的领导者选举也使用TCP，我们目前需要另一个端口进行领导者选举。这是服务器条目中的第二个端口。

从Zookeeper Docs中提取

所有在一起应该看起来像这样（没有测试它）：

version: '3.3'

networks:
kafka_example:
    driver: overlay

services:
zookeeper-1:
    image: confluentinc/cp-zookeeper:5.0.1
    volumes:
    - '/volumedockerkafka/zookeeper-1/zookeeper_data:/var/lib/zookeeper:rw'  # mount point
    - '/volumedockerkafka/zookeeper-1/zookeeper_etc:/etc/zookeeper:rw'  # mount point
    environment:
    ZOOKEEPER_SERVER_ID: 1
    ZOOKEEPER_CLIENT_PORT: 22181
    ZOOKEEPER_SERVERS: zookeeper-1:22888:23888;zookeeper-2:32888:33888;zookeeper-3:42888:43888
    ZOOKEEPER_TICK_TIME: 2000
    ZOOKEEPER_INIT_LIMIT: 5
    ZOOKEEPER_SYNC_LIMIT: 2
    networks:
    - kafka_example

zookeeper-2:
    image: confluentinc/cp-zookeeper:5.0.1
    volumes:
    - '/volumedockerkafka/zookeeper-2/zookeeper_data:/var/lib/zookeeper:rw'  # mount point
    - '/volumedockerkafka/zookeeper-2/zookeeper_etc:/etc/zookeeper:rw'  # mount point
    environment:
    ZOOKEEPER_SERVER_ID: 2
    ZOOKEEPER_CLIENT_PORT: 32181
    ZOOKEEPER_SERVERS: zookeeper-1:22888:23888;zookeeper-2:32888:33888;zookeeper-3:42888:43888
    ZOOKEEPER_TICK_TIME: 2000
    ZOOKEEPER_INIT_LIMIT: 5
    ZOOKEEPER_SYNC_LIMIT: 2
    networks:
    - kafka_example

zookeeper-3:
    image: confluentinc/cp-zookeeper:5.0.1
    volumes:
    - '/volumedockerkafka/zookeeper-3/zookeeper_data:/var/lib/zookeeper:rw'  # mount point
    - '/volumedockerkafka/zookeeper-3/zookeeper_etc:/etc/zookeeper:rw'  # mount point
    environment:
    ZOOKEEPER_SERVER_ID: 3
    ZOOKEEPER_CLIENT_PORT: 42181
    ZOOKEEPER_SERVERS: zookeeper-1:22888:23888;zookeeper-2:32888:33888;zookeeper-3:42888:43888
    ZOOKEEPER_TICK_TIME: 2000
    ZOOKEEPER_INIT_LIMIT: 5
    ZOOKEEPER_SYNC_LIMIT: 2
    networks:
    - kafka_example

message_queue_kafka-1:
    image: confluentinc/cp-kafka:5.0.1
    volumes:
    - '/volumedockerkafka/kafka-1/kafka_data:/var/lib/kafka/data:rw'  # mount point
    - '/volumedockerkafka/kafka-1/kafka_etc:/etc/kafka:rw'
    environment:
    KAFKA_LOG4J_OPTS: '-Dlog4j.configuration=file:/etc/kafka/json_log4j.properties'
    KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:22181,zookeeper-2:32181,zookeeper-3:42181
    KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-1:9092
    KAFKA_BROKER_ID: 1
    KAFKA_SESSION_TIMEOUT_MS: 60000
    KAFKA_HEARTBEAT_INTERVAL_MS: 20000
    KAFKA_REBALANCE_TIMEOUT_MS: 300000
    depends_on:
    - zookeeper-1
    - zookeeper-2
    - zookeeper-3
    networks:
    - kafka_example

message_queue_kafka-2:
    image: confluentinc/cp-kafka:5.0.1
    volumes:
    - '/volumedockerkafka/kafka-2/kafka_data:/var/lib/kafka/data:rw'  # mount point
    - '/volumedockerkafka/kafka-2/kafka_etc:/etc/kafka:rw'
    environment:
    KAFKA_LOG4J_OPTS: '-Dlog4j.configuration=file:/etc/kafka/json_log4j.properties'
    KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:22181,zookeeper-2:32181,zookeeper-3:42181
    KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-2:9092
    KAFKA_BROKER_ID: 2ori
    KAFKA_SESSION_TIMEOUT_MS: 60000
    KAFKA_HEARTBEAT_INTERVAL_MS: 20000
    KAFKA_REBALANCE_TIMEOUT_MS: 300000
    depends_on:
    - zookeeper-1
    - zookeeper-2
    - zookeeper-3
    networks:
    - kafka_example

message_queue_kafka-3:
    image: confluentinc/cp-kafka:5.0.1
    volumes:
    - '/volumedockerkafka/kafka-3/kafka_data:/var/lib/kafka/data:rw'  # mount point
    - '/volumedockerkafka/kafka-3/kafka_etc:/etc/kafka:rw'
    environment:
    KAFKA_LOG4J_OPTS: '-Dlog4j.configuration=file:/etc/kafka/json_log4j.properties'
    KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:22181,zookeeper-2:32181,zookeeper-3:42181
    KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://message_queue_kafka-3:9092
    KAFKA_BROKER_ID: 3
    KAFKA_SESSION_TIMEOUT_MS: 60000
    KAFKA_HEARTBEAT_INTERVAL_MS: 20000
    KAFKA_REBALANCE_TIMEOUT_MS: 300000
    depends_on:
    - zookeeper-1
    - zookeeper-2
    - zookeeper-3
    networks:
    - kafka_example

UPDATE

这是我正在使用的docker-compose，在我的设置中，容器可以在两个物理主机中的任何一个中。

version: '2'
services:
zookeeper-3:
    image: confluentinc/cp-zookeeper:5.1.1
    environment:
    ZOOKEEPER_CLIENT_PORT: '42181'
    ZOOKEEPER_INIT_LIMIT: '5'
    ZOOKEEPER_SERVERS: zookeeper-1:22888:23888;zookeeper-2:32888:33888;zookeeper-3:42888:43888
    ZOOKEEPER_SERVER_ID: '3'
    ZOOKEEPER_SYNC_LIMIT: '2'
    ZOOKEEPER_TICK_TIME: '2000'
zookeeper-2:
    image: confluentinc/cp-zookeeper:5.1.1
    environment:
    ZOOKEEPER_CLIENT_PORT: '32181'
    ZOOKEEPER_INIT_LIMIT: '5'
    ZOOKEEPER_SERVERS: zookeeper-1:22888:23888;zookeeper-2:32888:33888;zookeeper-3:42888:43888
    ZOOKEEPER_SERVER_ID: '2'
    ZOOKEEPER_SYNC_LIMIT: '2'
    ZOOKEEPER_TICK_TIME: '2000'
zookeeper-1:
    image: confluentinc/cp-zookeeper:5.1.1
    environment:
    ZOOKEEPER_CLIENT_PORT: '22181'
    ZOOKEEPER_INIT_LIMIT: '5'
    ZOOKEEPER_SERVERS: zookeeper-1:22888:23888;zookeeper-2:32888:33888;zookeeper-3:42888:43888
    ZOOKEEPER_SERVER_ID: '1'
    ZOOKEEPER_SYNC_LIMIT: '2'
    ZOOKEEPER_TICK_TIME: '2000'
kafka-1:
    image: confluentinc/cp-enterprise-kafka:5.1.1
    environment:
    KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka-1:19092
    KAFKA_BROKER_ID: '1'
    KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT
    KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:22181,zookeeper-2:32181,zookeeper-3:42181
    KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: '0'
kafka-2:
    image: confluentinc/cp-enterprise-kafka:5.1.1
    environment:
    KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka-2:29092
    KAFKA_BROKER_ID: '2'
    KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT
    KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:22181,zookeeper-2:32181,zookeeper-3:42181
    KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: '0'
kafka-3:
    image: confluentinc/cp-enterprise-kafka:5.1.1
    environment:
    KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka-3:39092
    KAFKA_BROKER_ID: '3'
    KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT
    KAFKA_ZOOKEEPER_CONNECT: zookeeper-1:22181,zookeeper-2:32181,zookeeper-3:42181
    KAFKA_GROUP_INITIAL_REBALANCE_DELAY_MS: '0'
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