Hi Eric, Thank you for your reply.
I commented some below. Thanks! Regards, Bongjae Chang On 5/25/12 3:38 PM, "Eric Covener" <cove...@gmail.com> wrote: >> But, I have a question. Can't Apache detect the closed connection as >>soon >> as the backend connection is closed? > >It "can" but it doesn't. Then you mean it doesn't matter if CLOSE_WAITs exist because the case is a rare example. As your words, Apache doesn't close the peer connection which has been already closed though Apache can. Then, could I know the reason by any chance?(just curious) > >> I am sorry that I don't review codes yet so I don't know if Apache uses >> blocking I/O or NIO for backend. >> > >NIO is a java-ism. Woops. I am sorry for using "NIO" words. :-) >mod_proxy is synchronous and nobody is watching >the sockets while a thread isn't handling a request and trying to use >the conn. > >> >> Is the watcher thread which is going through all of the connections >> looking to see if they have been closed by the peer only solution? > >There is no thread. I see.. then I think that it will be useful if mod_proxy will support the feature later(just my opinion). >