Guys, you were right. The limit is on the client. I didn't realize the limit is 32k connections to the same IP/Port combination, and not just to the same IP address (thanks Matt). This is why one client was able to two to open 64k connections to two different ports, and that was confusing me.
Thank you, Guido. On Friday, July 5, 2013 12:38:09 AM UTC+2, Matt Sergeant wrote: > > > On Thu, Jul 4, 2013 at 6:29 PM, Guido García Bernardo < > [email protected] <javascript:>> wrote: > >> I increased the number of ephimeral ports on the client before running >> it. In any case I don't think that is the issue, becasue when I run the >> same nodejs server process (on a different port), the two processes are >> able to handle 32K concurrent connections each (64K total). >> > > Can you be more clear here on what the problem is and what error you see? > > On a CLIENT you cannot make more than 32k connections to the same IP/Port > combination. It's impossible. > > On a SERVER you can have trillions of incoming connections, BUT, they MUST > come from different IP addresses up to a maximum of 32k per IP address. > > Think of the table like this: > > 1) Local IP > 2) LocalPort > 3) Remote IP > 4) RemotePort > > 1 is usually fixed unless you listen on more than one IP address. > 2 is usually fixed (e.g. port 80 for http) > 3 varies in IPv4 up to 4 billion-ish addresses > 4 varies and is generally randomly chosen by the OS, but is in a fixed > range up to 32k > > If you fix 1 2 and 3 then you can only have 32k connections. But if you > vary 3 then your number is limitless (practically). > > Does that help? > > Matt. > -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
