I think you should use multi database connection

'read' => array(
'host'=>'...',
'driver'=>'...'
'port'      => 3306,
'database'  => '*****',
'username'  => '***',
'password'  => '****',
'charset'   => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix'    => ''
),

'write' => array(
'host'=>'...',
'driver'=>'...'
'port'      => 3306,
'database'  => '*****',
'username'  => '***',
'password'  => '****',
'charset'   => 'utf8',
'collation' => 'utf8_unicode_ci',
'prefix'    => ''
),

Use for read

DB::connection('read')->table()......

And write

DB::connection('write')->table()......

Hello tuyenlaptrinh, thanks for your quick answer. But does this provide a fallback to the other database if one of them is down? For instance, if the read database is down, will it use the write database to do the reading?