I have 10 application servers and 1 mysql database. I would like to do connection pooling for mysql, but simply enabling mysql_pconnect() will not work since it'll cause some servers to have more connections than others.
What's the best solution for this scenario..?
Why do you want to use persistent connections?
They are likely to cause trouble and will not improve performance noticeably (in all likelihood).
Run some performance tests on production-grade hardware in your lab, and you'll see.
来源：https://stackoverflow.com/questions/2252612/mysql-persistent-connections