Zinn® Cache: Turn on the Redis object cache for WordPress

Turn on the Redis object cache for WordPress

Install the Redis object-cache drop-in from Zinn® Cache, connect it to your Redis server, and what happens if Redis stops answering.

1. Check Redis support — The status panel on the Cache screen shows whether the phpredis PHP extension is installed. Without it the object cache toggle is disabled.
2. Open the Object cache tab — In Zinn Digital®, Cache, choose Object cache and tick Install the Redis object-cache drop-in.
3. Enter the connection — Set the Redis host, port and, if needed, password. On a Redis server shared by several sites give each site its own database number or key prefix, or they will clear each other's cache.
4. Save — The drop-in is installed into wp-content. Zinn® Cache never overwrites a drop-in that belongs to another caching plugin, and tells you if one is already there.
5. Know the fallback — If Redis becomes unreachable, the drop-in answers from an in-memory cache for that request, so the site stays up while Redis is fixed.

With screenshots: https://zinncache.com/kb/redis-object-cache-for-wordpress