Laravel 10: How to troubleshoot `Database connection timeout` scenarios when running scheduled tasks?
Hey everyone, I'm running into an issue that's driving me crazy. I'm experiencing a `Database connection timeout` behavior when my Laravel 10 application tries to execute scheduled tasks. This scenario occurs intermittently and seems to happen more frequently during peak usage times. The behavior message I'm receiving is: ``` SQLSTATE[HY000] [2002] Connection timed out ``` I've already confirmed that my database server is up and running, and I can connect to it manually using a database client. The scheduled tasks are set up correctly in `app/Console/Kernel.php`, and the command to run the scheduler is set up in my server's crontab as follows: ``` * * * * * php /path-to-your-project/artisan schedule:run >> /dev/null 2>&1 ``` In my database configuration in `config/database.php`, I have the following settings: ```php 'mysql' => [ 'driver' => 'mysql', 'host' => env('DB_HOST', '127.0.0.1'), 'port' => env('DB_PORT', '3306'), 'database' => env('DB_DATABASE', ''), 'username' => env('DB_USERNAME', ''), 'password' => env('DB_PASSWORD', ''), 'unix_socket' => env('DB_SOCKET', ''), 'charset' => 'utf8mb4', 'collation' => 'utf8mb4_unicode_ci', 'prefix' => '', 'strict' => true, 'engine' => null, ], ``` I've tried increasing the timeout settings in my database configuration by adding a `timeout` option: ```php 'options' => [ PDO::ATTR_TIMEOUT => 10, ], ``` However, this hasn't resolved the scenario. Additionally, I checked the server load during the times when the errors occur, and it seems there is a spike in CPU and memory usage. I've also considered optimizing my queries, but I'm unsure how to identify which parts of the scheduled tasks might be causing the bottleneck. Has anyone faced a similar scenario or have suggestions on how to troubleshoot this database connection timeout behavior effectively? Any suggestions would be helpful.