Hi, > Thanks very much for your answer ! > Actually, we just used FreeBSD9.2 with the same configuration before, > but the situation almost the same :(
Ok, at least its not likely to be a OS bug then. > And is there any other possible reason there ? Or is there any > possible tools for track the problem ? Like I said, you will need to reproduce the problem on a box with no traffic at all - so the impact of a single connection can be analyzed (sockets status on the frontend/backend, for example). Its nearly impossible to this on a busy box with a lot of production traffic. Also, the configuration needs to be trimmed down to a single, specific use case (you already said you suspect a specific backend). Regards, Lukas
