To check bytes used by a variable in SQL Server, you can use
Whenever you access any website from the browser, all the static resources such as JS, CSS & images are cached by the browser. So, whenever you open the next page on that website, the browser will fetch those resources from the cache. This cache could be either disc cache or memory cache.
To determine the code-point value of a Unicode character in SQL Server, you can use
UNICODE() function which is provided by default in SQL Server.
If you are not using Redis in cluster mode or master-slave mode & still getting this error CLUSTERDOWN Hash slot not served then you must try the below solution. That should fix the issue.