突然，我的实例停止响应 mysql 个连接的传入连接

Question

出于开发和测试目的，我在 gcp 实例上安装了 mysql。一切正常，但突然开始出现连接超时错误。已为 MySQL 个连接打开防火墙。它工作得很好，突然就停止了。

这是连接日志

{
 inserted: "xxxxxx"
 jsonPayload: {
  connection: {
   dest_ip: "10.142.0.2"    
   dest_port: 3306    
   protocol: 6    
   src_ip: "54.87.222.27"    
   src_port: 52638    
  }
  disposition: "ALLOWED"   
  instance: {
   project_id: "xxxxxxxx"    
   region: "us-east1"    
   vm_name: "stockarea-server"    
   zone: "us-east1-b"    
  }
  remote_location: {
   city: "Ashburn"    
   continent: "America"    
   country: "usa"    
   region: "Virginia"    
  }
  rule_details: {
   action: "ALLOW"    
   direction: "INGRESS"    
   ip_port_info: [
    0: {
     ip_protocol: "TCP"      
     port_range: [
      0: "3306"       
     ]
    }
    1: {
     ip_protocol: "UDP"      
     port_range: [
      0: "3306"       
     ]
    }
   ]
   priority: 1000    
   reference: "network:default/firewall:heroku-sql"    
   source_range: [
    0: "0.0.0.0/0"     
   ]
  }
  vpc: {
   project_id: "xxxxxxxx"    
   subnetwork_name: "default"    
   vpc_name: "default"    
  }
 }
 logName: "projects/pxxxxxxx/logs/compute.googleapis.com%2Ffirewall"  
 receiveTimestamp: "2020-05-22T18:25:57.341545693Z"  
 resource: {
  labels: {
   location: "us-east1-b"    
   project_id: "xxxxxxxx"    
   subnetwork_id: "5137290941342062105"    
   subnetwork_name: "default"    
  }
  type: "gce_subnetwork"   
 }
 timestamp: "2020-05-22T18:25:45.934585080Z"  
}

我有 MySQL 个用户有权访问不同的 IP 地址：

+------------------+-----------+
| user             | host      |
+------------------+-----------+
| client           | %         |
| stockarea        | %         |
| debian-sys-maint | localhost |
| mysql.session    | localhost |
| mysql.sys        | localhost |
| root             | localhost |

更新：我看到 MySQL error.log 文件并看到有人受到攻击并以某种方式使数据库崩溃。它正在抛出错误 packet getting out of order。我现在重新安装了 MySQL 来解决这个问题并继续我的开发。

Answer 1

您好，我尝试对您的外部 IP 执行 ping 操作，但没有问题。所以所有 80、443 和 3306。我相信你的防火墙设置正确，请确保你的服务是运行并监听这些端口。

最后，请注意您应该清理 public 论坛

中的私人信息，例如 IP 地址和项目 ID

突然，我的实例停止响应 mysql 个连接的传入连接

Suddenly my instance stopped responding to my incoming connections for mysql connections

mysql

google-compute-engine

google-cloud-platform