I am in the process of making a Javascript(Front end, PHP back end) game. In this game it checks the server for updates every 2 seconds. There is one 1 sql call being run and at the end I use $mysqli->close() to close the SQL connection. The columns in the where are both indexed.
The problem I am having is after its running for a little while MYSQL starts spawning tons of sleep processes. Does anyone have any idea what might be causing this?
I d push updates to your users instead of polling for them. Check out the AJAX Push Engine, that can help a lot. Also, turn on persistent MySQL connections, that could help.
Do the processes stick around? Mysql likes to keep a few threads open to recieve requests, i wouldn t worry about them unless it leaving a lot of them open and there taking up resources.
If your hitting the request every 2 seconds its cheaper to keep the pool waiting for a request than instantiating a connection every time.
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