Drupal why when I connect redis the site gives an error 500?

Question

Drupal

One site is already running on the server that is connected to the radish via setting.php, I take the lines from the same file for connecting to the radish and paste it into the settings file of another site, save it and get an error 500. I remember that when I connected the first site, he told me too gave a 500 error, but I think I entered some command through the console on the server and the site started working, but I can’t remember exactly what I entered. Server running on Centos predis running issues PONG. Tell me which way to dig?

Answer 1

In any unclear situation, look at the server logs.