ajax search suggest autocomplete, server keep querying

ajax search suggest autocomplete. when i input something, ajax sends them to the se开发者_开发百科rver, query them and send back to client. But sometime when i input some words, ajax sends them to the server, server keep querying them. Should I set up timeout?

I would think so. You actually need to give more background info. There is too less info to make any guesses or suggestions...

I using workbench. So I upgraded it to newer version. It looks like its working fine