On Sat, Apr 17, 2010 at 7:00 PM, chuj625 <nginx-forum at nginx.us> wrote: > well, you mean it is not a nginx problem? > > i have to see if there is any problem with my project > sometimes it does go really well, but 502 problem occures every now and then > > ps. it's not a php service Hmm, proxy app. Check error.log file, see what happens. -- Ren Xiaolei