问题描述
我正在启动我的第一个docker proyect,试图设置zookeeper和Kafka。
我有以下docker-compose.yml:
version: "3.8"
networks:
mynet:
services:
zookeeper:
image: wurstmeister/zookeeper
ports:
- "2181:2181"
networks:
- mynet
kafka:
image: wurstmeister/kafka:2.12-2.4.0
ports:
- "9092:9092"
expose:
- "9093"
environment:
KAFKA_LISTENERS: INSIDE://0.0.0.0:9093,OUTSIDE://0.0.0.0:9092
KAFKA_ADVERTISED_LISTENERS: INSIDE://kafka:9093,OUTSIDE://localhost:9092
KAFKA_LISTENER_Security_PROTOCOL_MAP: INSIDE:PLAINTEXT,OUTSIDE:PLAINTEXT
KAFKA_INTER_broKER_LISTENER_NAME: INSIDE
KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
# Create a topic NAME:PARTITION:REPLICAS
KAFKA_CREATE_TOPICS: "example-topic:1:1"
networks:
- mynet
kafka-manager:
image: sheepkiller/kafka-manager:latest
environment:
ZK_HOSTS: "zookeeper:2181"
ports:
- 9000:9000
networks:
- mynet
我执行docker-compose.yml:
sudo docker-compose up -d
要检查是否已创建主题,请通过以下方式访问Kafka shell:
sudo docker exec -it <<CONTAINER ID>> sh
在此外壳中,我转到:
cd opt/kafka
并执行:
bin/kafka-topics.sh --list --zookeeper localhost:2181
Exception in thread "main" kafka.zookeeper.ZooKeeperClientTimeoutException: Timed out waiting for connection while in state: CONNECTING
at kafka.zookeeper.ZooKeeperClient.$anonfun$waitUntilConnected$3(ZooKeeperClient.scala:259)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at kafka.utils.CoreUtils$.inLock(CoreUtils.scala:253)
at kafka.zookeeper.ZooKeeperClient.waitUntilConnected(ZooKeeperClient.scala:255)
at kafka.zookeeper.ZooKeeperClient.<init>(ZooKeeperClient.scala:113)
at kafka.zk.KafkaZkClient$.apply(KafkaZkClient.scala:1858)
at kafka.admin.TopicCommand$ZookeeperTopicService$.apply(TopicCommand.scala:321)
at kafka.admin.TopicCommand$.main(TopicCommand.scala:54)
at kafka.admin.TopicCommand.main(TopicCommand.scala)
解决方法
Zookeeper不在Kafka容器中运行。
由于不建议使用Zookeeper参数,因此无论如何都应使用--bootstrap-server localhost:9092