```
/opt/librenms/poller.php 254 2023-03-28 02:31:04 - 1 devices polled in 3.028 secs
/opt/librenms/poller.php 263 2023-03-28 02:31:05 - 1 devices polled in 2.769 secs
/opt/librenms/poller.php 230 2023-03-28 02:31:05 - 1 devices polled in 2.976 secs
/opt/librenms/discovery.php new 2023-03-28 02:35:01 - 0 devices discovered in 0.001 secs
/opt/librenms/discovery.php new 2023-03-28 02:40:01 - 0 devices discovered in 0.001 secs
/opt/librenms/discovery.php new 2023-03-28 02:45:01 - 0 devices discovered in 0.001 secs
/opt/librenms/discovery.php new 2023-03-28 02:50:01 - 0 devices discovered in 0.001 secs
/opt/librenms/discovery.php new 2023-03-28 02:55:02 - 0 devices discovered in 0.001 secs
/opt/librenms/discovery.php new 2023-03-28 03:00:01 - 0 devices discovered in 0.002 secs
/opt/librenms/discovery.php new 2023-03-28 03:05:01 - 0 devices discovered in 0.001 secs
/opt/librenms/discovery.php new 2023-03-28 03:10:01 - 0 devices discovered in 0.002 secs
/opt/librenms/discovery.php new 2023-03-28 03:15:02 - 0 devices discovered in 0.002 secs
/opt/librenms/discovery.php new 2023-03-28 03:20:03 - 0 devices discovered in 0.005 secs
[2023-03-28T03:29:57.056680+13:00] production.ERROR: SQLSTATE[HY000] [2002] Connection refused (SQL: insert into `device_perf` (`min`, `max`, `avg`, `xmt`, `rcv`, `loss`, `debug`, `device_id`, `timestamp`) values (18.1, 19.3, 18.8, 3, 3, 0, {"poller_name":"librenms"}, 2>
[previous exception] [object] (Doctrine\\DBAL\\Driver\\PDO\\Exception(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Exception.php:18)
[previous exception] [object] (PDOException(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:40)"}
[2023-03-28T03:29:57.043718+13:00] production.ERROR: SQLSTATE[HY000] [2002] Connection refused (SQL: insert into `device_perf` (`min`, `max`, `avg`, `xmt`, `rcv`, `loss`, `debug`, `device_id`, `timestamp`) values (18.9, 20.8, 19.6, 3, 3, 0, {"poller_name":"librenms"}, 2>
[previous exception] [object] (Doctrine\\DBAL\\Driver\\PDO\\Exception(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Exception.php:18)
[previous exception] [object] (PDOException(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:40)"}
[2023-03-28T03:29:57.050180+13:00] production.ERROR: SQLSTATE[HY000] [2002] Connection refused (SQL: insert into `device_perf` (`min`, `max`, `avg`, `xmt`, `rcv`, `loss`, `debug`, `device_id`, `timestamp`) values (31.7, 31.8, 31.8, 3, 3, 0, {"poller_name":"librenms"}, 2>
[previous exception] [object] (Doctrine\\DBAL\\Driver\\PDO\\Exception(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Exception.php:18)
[previous exception] [object] (PDOException(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:40)"}
```

etc etc

```
[2023-03-28T03:29:58.224890+13:00] production.ERROR: SQLSTATE[HY000] [2002] Connection refused (SQL: update `cache_locks` set `owner` = GcBGnu8TyiBMqiG6, `expiration` = 1679927457 where `key` = laravel_cachealerts and (`owner` = GcBGnu8TyiBMqiG6 or `expiration` <= 16799>
[previous exception] [object] (Doctrine\\DBAL\\Driver\\PDO\\Exception(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Exception.php:18)
[previous exception] [object] (PDOException(code: 2002): SQLSTATE[HY000] [2002] Connection refused at /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:40)"}
[2023-03-28T03:29:58.861725+13:00] production.ERROR: PDOException: SQLSTATE[HY000] [2002] Connection refused in /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:40
Stack trace:
#0 /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(40): PDO->__construct()
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(67): Doctrine\DBAL\Driver\PDOConnection->__construct()
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(100): Illuminate\Database\Connectors\Connector->createPdoConnection()
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(50): Illuminate\Database\Connectors\Connector->tryAgainIfCausedByLostConnection()
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\Database\Connectors\Connector->createConnection()
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(184): Illuminate\Database\Connectors\MySqlConnector->connect()
#6 [internal function]: Illuminate\Database\Connectors\ConnectionFactory->Illuminate\Database\Connectors\{closure}()
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1064): call_user_func()
#8 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1100): Illuminate\Database\Connection->getPdo()
#9 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(442): Illuminate\Database\Connection->getReadPdo()
#10 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(368): Illuminate\Database\Connection->getPdoForSelect()
#11 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(705): Illuminate\Database\Connection->Illuminate\Database\{closure}()
#12 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(784): Illuminate\Database\Connection->runQueryCallback()
#13 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(764): Illuminate\Database\Connection->tryAgainIfCausedByLostConnection()
#14 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(675): Illuminate\Database\Connection->handleQueryException()
#15 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(376): Illuminate\Database\Connection->run()
#16 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2414): Illuminate\Database\Connection->select()
#17 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2402): Illuminate\Database\Query\Builder->runSelect()
#18 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2936): Illuminate\Database\Query\Builder->Illuminate\Database\Query\{closure}()
#19 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2403): Illuminate\Database\Query\Builder->onceWithColumns()
#20 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(625): Illuminate\Database\Query\Builder->get()
#21 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(609): Illuminate\Database\Eloquent\Builder->getModels()
#22 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(294): Illuminate\Database\Eloquent\Builder->get()
#23 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(474): Illuminate\Database\Eloquent\Builder->first()
#24 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(508): Illuminate\Database\Eloquent\Builder->firstOrNew()
#25 /opt/librenms/vendor/laravel/framework/src/Illuminate/Support/Traits/ForwardsCalls.php(23): Illuminate\Database\Eloquent\Builder->updateOrCreate()
#26 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(2132): Illuminate\Database\Eloquent\Model->forwardCallTo()
#27 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(2144): Illuminate\Database\Eloquent\Model->__call()
#28 /opt/librenms/LibreNMS/Config.php(262): Illuminate\Database\Eloquent\Model::__callStatic()
#29 /opt/librenms/LibreNMS/Config.php(460): LibreNMS\Config::persist()
#30 /opt/librenms/LibreNMS/Config.php(61): LibreNMS\Config::processConfig()
#31 /opt/librenms/app/Providers/ConfigServiceProvider.php(27): LibreNMS\Config::load()
#32 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): App\Providers\ConfigServiceProvider->boot()
#33 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Util.php(40): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#34 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(93): Illuminate\Container\Util::unwrapIfClosure()
#35 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(37): Illuminate\Container\BoundMethod::callBoundMethod()
#36 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(653): Illuminate\Container\BoundMethod::call()
#37 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(924): Illuminate\Container\Container->call()
#38 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(905): Illuminate\Foundation\Application->bootProvider()
#39 [internal function]: Illuminate\Foundation\Application->Illuminate\Foundation\{closure}()
#40 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(906): array_walk()
#41 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/BootProviders.php(17): Illuminate\Foundation\Application->boot()
#42 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(237): Illuminate\Foundation\Bootstrap\BootProviders->bootstrap()
#43 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(310): Illuminate\Foundation\Application->bootstrapWith()
#44 /opt/librenms/LibreNMS/Util/Laravel.php(44): Illuminate\Foundation\Console\Kernel->bootstrap()
#45 /opt/librenms/includes/init.php(88): LibreNMS\Util\Laravel::bootCli()
#46 /opt/librenms/poller.php(35): require('...')
#47 {main}
Next Doctrine\DBAL\Driver\PDO\Exception: SQLSTATE[HY000] [2002] Connection refused in /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDO/Exception.php:18
Stack trace:
#0 /opt/librenms/vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php(44): Doctrine\DBAL\Driver\PDO\Exception::new()
#1 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(67): Doctrine\DBAL\Driver\PDOConnection->__construct()
#2 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(100): Illuminate\Database\Connectors\Connector->createPdoConnection()
#3 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(50): Illuminate\Database\Connectors\Connector->tryAgainIfCausedByLostConnection()
#4 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/MySqlConnector.php(24): Illuminate\Database\Connectors\Connector->createConnection()
#5 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connectors/ConnectionFactory.php(184): Illuminate\Database\Connectors\MySqlConnector->connect()
#6 [internal function]: Illuminate\Database\Connectors\ConnectionFactory->Illuminate\Database\Connectors\{closure}()
#7 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1064): call_user_func()
#8 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(1100): Illuminate\Database\Connection->getPdo()
#9 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(442): Illuminate\Database\Connection->getReadPdo()
#10 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(368): Illuminate\Database\Connection->getPdoForSelect()
#11 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(705): Illuminate\Database\Connection->Illuminate\Database\{closure}()
#12 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(784): Illuminate\Database\Connection->runQueryCallback()
#13 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(764): Illuminate\Database\Connection->tryAgainIfCausedByLostConnection()
#14 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(675): Illuminate\Database\Connection->handleQueryException()
#15 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Connection.php(376): Illuminate\Database\Connection->run()
#16 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2414): Illuminate\Database\Connection->select()
#17 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2402): Illuminate\Database\Query\Builder->runSelect()
#18 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2936): Illuminate\Database\Query\Builder->Illuminate\Database\Query\{closure}()
#19 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php(2403): Illuminate\Database\Query\Builder->onceWithColumns()
#20 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(625): Illuminate\Database\Query\Builder->get()
#21 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(609): Illuminate\Database\Eloquent\Builder->getModels()
#22 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Concerns/BuildsQueries.php(294): Illuminate\Database\Eloquent\Builder->get()
#23 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(474): Illuminate\Database\Eloquent\Builder->first()
#24 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Builder.php(508): Illuminate\Database\Eloquent\Builder->firstOrNew()
#25 /opt/librenms/vendor/laravel/framework/src/Illuminate/Support/Traits/ForwardsCalls.php(23): Illuminate\Database\Eloquent\Builder->updateOrCreate()
#26 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(2132): Illuminate\Database\Eloquent\Model->forwardCallTo()
#27 /opt/librenms/vendor/laravel/framework/src/Illuminate/Database/Eloquent/Model.php(2144): Illuminate\Database\Eloquent\Model->__call()
#28 /opt/librenms/LibreNMS/Config.php(262): Illuminate\Database\Eloquent\Model::__callStatic()
#29 /opt/librenms/LibreNMS/Config.php(460): LibreNMS\Config::persist()
#30 /opt/librenms/LibreNMS/Config.php(61): LibreNMS\Config::processConfig()
#31 /opt/librenms/app/Providers/ConfigServiceProvider.php(27): LibreNMS\Config::load()
#32 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): App\Providers\ConfigServiceProvider->boot()
#33 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Util.php(40): Illuminate\Container\BoundMethod::Illuminate\Container\{closure}()
#34 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(93): Illuminate\Container\Util::unwrapIfClosure()
#35 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(37): Illuminate\Container\BoundMethod::callBoundMethod()
#36 /opt/librenms/vendor/laravel/framework/src/Illuminate/Container/Container.php(653): Illuminate\Container\BoundMethod::call()
#37 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(924): Illuminate\Container\Container->call()
#38 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(905): Illuminate\Foundation\Application->bootProvider()
#39 [internal function]: Illuminate\Foundation\Application->Illuminate\Foundation\{closure}()
#40 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(906): array_walk()
#41 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Bootstrap/BootProviders.php(17): Illuminate\Foundation\Application->boot()
#42 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Application.php(237): Illuminate\Foundation\Bootstrap\BootProviders->bootstrap()
#43 /opt/librenms/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(310): Illuminate\Foundation\Application->bootstrapWith()
#44 /opt/librenms/LibreNMS/Util/Laravel.php(44): Illuminate\Foundation\Console\Kernel->bootstrap()
#45 /opt/librenms/includes/init.php(88): LibreNMS\Util\Laravel::bootCli()
#46 /opt/librenms/poller.php(35): require('...')
#47 {main}
```

etc