I've seen this before and it was tightly bound to the Acceptor backlog for me. My desktop is Win 2008 r2 and I can get 18,000 tcp connections in Java.
Selectors for some reason are very expensive in Windows. (maybe because they are not totally independent of each other). Where I can use 8 on Linux; there is a significant performance problem with greater than 3 on Windows. On Mon, Sep 30, 2013 at 11:54 AM, Emmanuel Lécharny <elecha...@gmail.com>wrote: > Le 9/30/13 8:52 AM, Jon V. a écrit : > > NioSocketAcceptor( number ) creates N threads. > 10 is a problem in most > > cases. The default backlog for a SocketAcceptor in Java is 50. I have > > mine set to 200 to prevent dropped "accept" requests. Each time a socket > > attempts to connect it gets put in the backlog waiting for an "accept" to > > be called. If this buffer overflows the TCP connections drop in a bad > way. > > As I already said in a previous mail, this 1000 port limit is extremelly > weird. > > In any case, this has nothing to do with MINA and any setting on MINA. > > Chck : > - your firewall > - your router setting. > - consider using a decent OS instead of Windows 2008 which is, all in > all, just 6 years old... > > > -- > Regards, > Cordialement, > Emmanuel Lécharny > www.iktek.com > >
