Re: Counting Online users, but not using a Session Table in MySQL
| From: | AmirBehzad Eslami | Date: | Fri, 28 Jan 2011 18:47:50 +0000 |
| Subject: | Re: Counting Online users, but not using a Session Table in MySQL | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-311074@lists.php.net to get a copy of this message | ||
Jim, I'm already using the solution you mentioned.
The problem is about the performance.
One solution is to increase the performance by using Memcached.
But counting online users always requires a __new__fresh__ COUNT(*) query, even
under Memcahched. Since the COUNT(*) result is very dynamic and could
change every second, it should not be cached.
I'm looking for a faster way to count online users.
COUNT(*) is time consuming under MySQL.
Any light-weight solutions?