几天来我一直在努力使kafka-docker工作,但我不知道自己在做什么错。现在,我无法使用ruby-kafka客户端访问任何主题,因为节点“不存在”。这是我的docker-compose.yml文件:
version: '2'
services:
zookeeper:
image: wurstmeister/zookeeper
ports:
- "2181:2181"
kafka:
image: wurstmeister/kafka:0.9.0.1
ports:
- "9092:9092"
links:
- zookeeper
environment:
KAFKA_BROKER_ID: 1
KAFKA_ADVERTISED_HOST_NAME: 192.168.99.100
KAFKA_ADVERTISED_PORT: 9092
KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'false'
volumes:
- /var/run/docker.sock:/var/run/docker.sock
kafka2:
image: wurstmeister/kafka:0.9.0.1
ports:
- "9093:9092"
links:
- zookeeper
environment:
KAFKA_BROKER_ID: 2
KAFKA_ADVERTISED_HOST_NAME: 192.168.99.100
KAFKA_ADVERTISED_PORT: 9093
KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'false'
volumes:
- /var/run/docker.sock:/var/run/docker.sock
kafka3:
image: wurstmeister/kafka:0.9.0.1
ports:
- "9094:9092"
links:
- zookeeper
environment:
KAFKA_BROKER_ID: 3
KAFKA_ADVERTISED_HOST_NAME: 192.168.99.100
KAFKA_ADVERTISED_PORT: 9094
KAFKA_ZOOKEEPER_CONNECT: zookeeper:2181
KAFKA_AUTO_CREATE_TOPICS_ENABLE: 'false'
volumes:
- /var/run/docker.sock:/var/run/docker.sock
我指定“ KAFKA_AUTO_CREATE_TOPICS_ENABLE:'false'”是因为我想手动创建主题,因此我进入了第一个经纪人容器并输入了以下内容:
./ kafka-topics.sh --create --zookeeper 172.19.0.2:2181 --topic test1 --partitions 4 --replication-factor 3
一切似乎都很好:
./ kafka-topics.sh --list --zookeeper 172.19.0.2:2181-> test1
但是,当我尝试这样做时:
./ kafka-console-producer.sh --broker-list localhost:9092 --topic test1
它说:
获取关联ID为24的元数据时出现警告错误:{test1 = UNKNOWN_TOPIC_OR_PARTITION}(org.apache.kafka.clients.NetworkClient)
如果我再次创建该主题,则表明该主题已经存在,因此我不知道发生了什么。
答案 0 :(得分:0)
您需要正确配置网络配置,因为Kafka可跨主机工作,并且需要能够访问所有主机。
This post对其进行了详细说明。
您可能还想参考https://github.com/confluentinc/cp-docker-images/blob/5.0.0-post/examples/cp-all-in-one/docker-compose.yml来了解有效的Docker Compose的示例。
答案 1 :(得分:0)
所以我们在使用kafka connect时遇到了这个问题。这有多种解决方案。修剪所有docker映像或在连接映像中更改用于连接的配置中的组ID,如下所示:-
image: debezium/connect:1.1
ports:
- 8083:8083
links:
- schema-registry
environment:
- BOOTSTRAP_SERVERS=kafkaanalytics-mgmt.fptsinternal.com:9092
- GROUP_ID=1
- CONFIG_STORAGE_TOPIC=my_connect_configs
- OFFSET_STORAGE_TOPIC=my_connect_offsets
- STATUS_STORAGE_TOPIC=my_connect_statuses
- INTERNAL_KEY_CONVERTER=org.apache.kafka.connect.json.JsonConverter
- INTERNAL_VALUE_CONVERTER=org.apache.kafka.connect.json.JsonConverter