Docker系列 | SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768

Docker系列 | SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768

错误日志

[2022-05-12 16:53:01][error] [数据驾驶舱] 命令行任务异常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768[2022-05-12 16:54:06][error] [数据驾驶舱] 命令行任务异常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768[2022-05-12 16:59:12][error] [数据驾驶舱] 命令行任务异常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768[2022-05-12 17:14:32][error] [数据驾驶舱] 命令行任务异常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768[2022-05-12 17:15:34][error] [数据驾驶舱] 命令行任务异常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768

关键是这个错误是偶尔的，一次可以一次又不可以

以上数据库连接是使用的阿里云RDS 外网地址如：rm-xxxxxxxxxxx.mysql.rds.aliyuncs.com

进入容器

# ping rm-xxxxxxxxxxxxxx.mysql.rds.aliyuncs.comping: bad address 'rm-xxxxxxxxxxxxxx.mysql.rds.aliyuncs.com'# ping rm-xxxxxxxxxxxxxx.mysql.rds.aliyuncs.comping: bad address 'rm-xxxxxxxxxxxxxx.mysql.rds.aliyuncs.com'

发现容器内没法ping通

解决方案：优化 DNS 解析

在请求域名时，DNS 解析可能会超时或者失败导致网站无法访问

Linux

/etc/docker/daemon.json"dns" : ["114.114.114.114","8.8.8.8"]

Windows

Docker Desktop 配置文件增加DNS，设置docker启动配置。增加以下配置

"dns": [ "114.114.114.114", "8.8.8.8" ],

增加后重启容器，解决问题

作者：Tinywan

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