Laravel validation 'exist' not working in master-slave DB configuration? - php

Question

I am moving the project to Master-Slave configuration and got a problem, that validation related to DB stopped working for me. Any ideas what I'm missing?
so here is validation part:
$request->validate([
'property_id' => 'required|exists:mysql.property,p_id',
... other validations not related to DB ...
], $error_messages);
file config\database.php :
'mysql' => [
'driver' => 'mysql',
'write' => [
'host' => '196.168.56.211',
],
'read' => [
'host' => '192.168.56.222',
],
'port' => '3306',
'database' => 'project_db',
'username' => 'db_user',
'password' => 'pass123',
'unix_socket' => env('DB_SOCKET'),
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
'strict' => false,
'engine' => null,
\PDO::ATTR_EMULATE_PREPARES => true,
],
this is what i'm reciving:
in file \vendor\laravel\framework\src\Illuminate\Database\Connection.php [663]:
catch (Exception $e) {
throw new QueryException(
$query, $this->prepareBindings($bindings), $e
);
}
SQLSTATE[HY000] [2002] An attempt to establish a connection was
unsuccessful, because The required response was not received from the
other computer within the required time, or the already established
connection was terminated due to the incorrect response of the already
connected computer. (SQL: select count(*) as aggregate from
property where p_id = 2444)
and this is happens when laravel try to connect to 'write' database.
But from MySQL workbench - connecting & editing records fine.
any ideas?

Answer 1

change your config to
'mysql' => [
'write' => [
'host' => '196.168.56.211'
],
'read' => [
'host' => '192.168.56.222',
],
'sticky' => true,
'driver' => 'mysql',
'database' => 'project_db',
'username' => 'db_user',
'password' => 'pass123',
'charset' => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix' => '',
],
This ensures that any data written during the request cycle can be immediately read back from the database during that same request
official document read for more info