water/server/config/redis.php

<?php

$connection = [
    'password' => env('REDIS_PASSWORD', ''),
    'host' => env('REDIS_HOST', '127.0.0.1'),
    'port' => env('REDIS_PORT', 6379),
    'database' => env('REDIS_DB', 0),
    'pool' => [
        'max_connections' => 5,
        'min_connections' => 1,
        'wait_timeout' => 3,
        'idle_timeout' => 60,
        'heartbeat_interval' => 50,
    ],
];

return [
    'default' => $connection,
    // A separate short-timeout pool keeps protection failures bounded.
    'mini_protection' => array_replace($connection, ['timeout' => 1, 'read_timeout' => 1]),
];