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I am using MySQL on wamp server. It takes 0.6 secs to establish a connection with mysql database, however when I use persistence connection it takes 0.035 secs. I read people comments on php manual and found that mysql_pconnect runs out of connections soon. Any suggestion how to improve connectivity time?
There’s no way it should take 0.6 seconds. Slow connection time is almost always related to DNS lookups.
Try starting your MySQL Server with
skip_name_resolveoption enabled in yourmy.inifile.Re your comments that you cannot connect: It’s hard to guess the reason for this because there are so many reasons for a connection failure.
Error 1045 Access denied: See Causes of Access-Denied Errors. You may have GRANTed privilegs to a mysql user in such a way that doesn’t enable that user when connecting via localhost/127.0.0.1.
Error 2003 Can’t connect to MySQL server: See Can’t connect to [local] MySQL server or the article on the MySQL Forge: Error2003-CantConnectToMySQLServer
There are other connection troubleshooting steps, but they depend on the nature of the failure. Can you be more specific about what error message you’re getting?