MySql Proccesslist filled with “Sleep” Entries leading to “Too many Connections”?

Question

I\'d like to ask your help on a longstanding issue with php/mysql connections.

Every time I execute a \"SHOW PROCESSLIST\" command it shows me about 400 idle (Status

Answer 1

So I was running 300 PHP processes simulatenously and was getting a rate of between 60 - 90 per second (my process involves 3x queries). I upped it to 400 and this fell to about 40-50 per second. I dropped it to 200 and am back to between 60 and 90!

So my advice to anyone with this problem is experiment with running less than more and see if it improves. There will be less memory and CPU being used so the processes that do run will have greater ability and the speed may improve.