[英]Mysql: forward host lookup failed: Unknown host
我们在我们的应用程序中使用docker-compose,并且不熟悉应用程序的这一部分,我们在运行docker docker-compose up --build
后收到此错误:
Mysql: forward host lookup failed: Unknown host
After an inspection to hosts list created by docker-compose: 在检查由docker-compose创建的主机列表后:
$ docker network prune
$ docker network ls
$ docker network inspect <desired_network>
I noticed db was not there, so I tried to build it up and see what happens: 我注意到db不存在,所以我尝试建立它,看看会发生什么:
$ docker-compose run <desired_db_image>
Getting the correct output: 获得正确的输出:
Initializing database
初始化数据库
mkdir: cannot create directory '/var/lib/mysql//mysql': No space left on device
mkdir:无法创建目录“ / var / lib / mysql // mysql”:设备上没有剩余空间
Fatal error Can't create database directory '/var/lib/mysql//mysql'
致命错误无法创建数据库目录'/ var / lib / mysql // mysql'
So you need to free some space : 因此,您需要释放一些空间 :
$ docker system prune
Select: y 选择: y
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