FIND THE SOLUTION??? hope this help u
1.enabled this redis plugin like usual in the site 1
2. for WEBSITE 2,3 AND SO ON….DO NOT ACTIVE THE REDIS AFTER INSTALLED..
THE MUST THING U HAVE TO DO IS add rules EVERY WP-CONFIG.PHP FILE AT EVERY SITE
example : each wp-config.php add rules
* Authentication Unique Keys and Salts.
* Change these to different unique phrases!
* You can generate these using the {@link https://api.ww.wp.xz.cn/secret-key/1.1/salt/ ww.wp.xz.cn secret-key service}
*/
define(‘WP_CACHE_KEY_SALT’, ‘yourdomain.com’);
define(‘WP_CACHE’, true);
do it in every wp-config…..then RUN YOUR REDIS PLUGIN……GOOD LUCK!!!!!