I've installed Redis Server and it can handle moodle's user sessions properly.
There are some parameters in config.php which I don't quite understand yet
$CFG->session_redis_acquire_lock_timeout = 120;
$CFG->session_redis_lock_expire = 7200;
What is the meaning of those 2 parameters?
for acquire_lock_timeout, is it the idle time before user logout automatically ?
Is 120 means 2 minutes?