参考:
https://stackoverflow.com/questions/69527813/spring-kafka-unknownhostexception-34bcfcc207e0
我遇到的问题和@Adán Escobar是一样的。
在SpringBoot整合kafka的时候日志报了Spring Kafka: UnknownHostException: 34bcfcc207e0,34bcfcc207e0经过排查是容器的ID。
解决办法：
修改docker-compose.yml文件。
我使用的是docker compose创建启动的容器。
点击查看代码
version: '3.9'
services:
redis:
image: redis:latest
container_name: redis
restart: always
ports:
- "6379:6379"
networks:
- backend
zookeeper:
image: bitnami/zookeeper:latest
container_name: zookeeper
restart: always
environment:
ALLOW_ANONYMOUS_LOGIN: yes
ZOOKEEPER_CLIENT_PORT: 2181
ZOOKEEPER_TICK_TIME: 2000
networks:
- backend
kafka:
image: bitnami/kafka:latest
container_name: kafka
restart: always
depends_on:
- zookeeper
ports:
- "9092:9092"
hostname: kafka
environment:
ALLOW_PLAINTEXT_LISTENER: yes
KAFKA_CFG_ZOOKEEPER_CONNECT: zookeeper:2181
KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
networks:
- backend
kafka-ui:
image: provectuslabs/kafka-ui:master
container_name: kafka-ui
restart: always
depends_on:
- kafka
ports:
- "8080:8080"
environment:
KAFKA_CLUSTERS_0_NAME: dev
KAFKA_CLUSTERS_0_BOOTSTRAPSERVERS: kafka:9092
networks:
- backend
prometheus:
image: prom/prometheus:latest
container_name: prometheus
restart: always
volumes:
- ./prometheus.yml:/etc/prometheus/prometheus.yml
ports:
- "9090:9090"
networks:
- backend
grafana:
image: grafana/grafana:latest
container_name: grafana
restart: always
depends_on:
- prometheus
ports:
- "3000:3000"
networks:
- backend
networks:
backend:
name: backend
在kafka配置下加上了hostname: kafka设置。
修改hosts文件
> 配置容器所在的服务器地址
# kafka
192.168.234.128 kafka
再次测试发现问题解决。
不清楚是否有更优雅的解决方案。等后续深入学习kafka再说。