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

錯誤日誌

[2022-05-12 16:53:01][error] [數據駕駛艙] 命令行任務異常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768
[2022-05-12 16:54:06][error] [數據駕駛艙] 命令行任務異常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768
[2022-05-12 16:59:12][error] [數據駕駛艙] 命令行任務異常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768
[2022-05-12 17:14:32][error] [數據駕駛艙] 命令行任務異常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768
[2022-05-12 17:15:34][error] [數據駕駛艙] 命令行任務異常，SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Try again768

關鍵是這個錯誤是偶爾的，一次可以一次又不可以

以上數據庫連接是使用的阿里雲RDS 外網地址如：rm-xxxxxxxxxxx.mysql.rds.aliyuncs.com

進入容器

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

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

 發現容器內沒法ping通

解決方案：優化 DNS 解析　　

在請求域名時，DNS 解析可能會超時或者失敗導致網站無法訪問

Linux

 

/etc/docker/daemon.json

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

 

Windows　　

 

Docker Desktop 配置文件增加DNS，設置docker啓動配置。增加以下配置

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

 

 

 

 增加後重啓容器，解決問題