Question

我正在尝试为具有3个实例的kafka连接器和cassandra群集设置landoop / fast-data-dev群集，但是我收到“启动userland代理时出错：监听tcp 0.0.0.0:9042：绑定：地址已在使用中” “。

使用sudo netstat -pna | grep 9042 我正进入（状态： tcp 0 0 127.0.0.1:9042 0.0.0.0:* LISTEN 1166/java

我尝试过 pkill -f CassandraDaemon和 docker rm -f $(docker ps -aq) 没有成功。这是docker-compose文件：

version: '2'

services:

        kafka-cluseter:
                image: landoop/fast-data-dev:latest
                environment:
                        ADV_HOST: 127.0.0.1
                        RUNTESTS: 0
                ports:
                        - 2181:2181
                        - 3030:3030
                        - 8081-8083:8081-8083
                        - 9581-9585:9581-9585
                        - 9092:9092
        ###############################
        cassandra0:
                image: cassandra:latest
                container_name: cassandra0
                ports:
                        - 9042:9042
                        - 7199:7199

        ###############################
        cassandra1:
                image: cassandra:latest
                container_name: cassandra1
                ports:
                        - 9142:9042
                links:
                        - cassandra0:seed
                environment:
                        - CASSANDRA_SEEDS=seed

        ###############################
        cassandra2:
                image: cassandra:latest
                container_name: cassandra2
                ports:
                        - 9242:9042
                links:
                        - cassandra0:seed
                environment:
                        - CASSANDRA_SEEDS=seed

Cassandra实例在以下时间未启动 sudo docker-compose up -d

Creating network "kafka-code_default" with the default driver
Creating cassandra0                  ... error
Creating kafka-code_kafka-cluseter_1 ... 

ERROR: for cassandra0  Cannot start service cassandra0: b'driver failed programming external connectivity on endpoint cassandra0 (e5383709e9e9b45bbdf57a6445da0df4e4aa228269ad1d18c4c3de70bc903b0a): Error starting userland proxy: listen tcp 0Creating kafka-code_kafka-cluseter_1 ... done

ERROR: for cassandra0  Cannot start service cassandra0: b'driver failed programming external connectivity on endpoint cassandra0 (e5383709e9e9b45bbdf57a6445da0df4e4aa228269ad1d18c4c3de70bc903b0a): Error starting userland proxy: listen tcp 0.0.0.0:9042: bind: address already in use'

Answer 1

您显示的端口9042上还有其他内容在运行：

sudo netstat -pna | grep 9042

tcp        0      0 127.0.0.1:9042          0.0.0.0:*               LISTEN      1166/java

这就是为什么您无法启动也要使用相同端口的Docker容器的原因。

问题是您假设该端口上必须是Docker或Cassandra，并试图杀死它们

pkill -f CassandraDaemon
docker rm -f $(docker ps -aq)

您真正需要做的是找出1166是什么进程，并终止该进程-或者，如果该进程正在运行，请为您的Docker容器选择另一个端口使用

ps -ef|grep 1166

启动Userland代理时出错：监听tcp 0.0.0.0:9042：绑定：地址已在使用中'

1 个答案: