yes I tried using keepalive ... but no luck .. currently I have implemented a heartbeat which writes to the socket every 7 seconds .. using that I'm able to detect the connection state almost in realtime ..
since I'm new to node .. i thought there might be a better way of doing the same On Tuesday, April 10, 2012 3:46:31 AM UTC+5:30, Jimb Esser wrote: > > Have you tried socket.setKeepAlive? I think this enables the TCP- > level keepalive flag (SO_KEEPALIVE) which should cause an OS-level TCP > disconnect much sooner. Doing a netstat -nop, it seems that every TCP > connection on my server except those made by node have this flag > enabled, so it seems the default in most situations, and without it > you may never get a notification (until you write some data to the > socket and the OS fails to send it, I think). A hardware restart will > not send FIN or RST. > > An app-level ping, causing data to be written to the socket at some > regular interval should also allow you to be notified sooner (because > if the other end has been restarted, TCP will almost immediately know > when it tries to send data). > > On Apr 9, 12:32 am, Ben Noordhuis <[email protected]> wrote: > > On Mon, Apr 9, 2012 at 06:19, Chirag A <[email protected]> wrote: > > > nope .. the close event is fired with has_error flag as false .... > > > I also tried using socket with allowhalfopen = false .. but no luck ! > > > > It sounds like the server doesn't send a FIN or RST packet. You should > > be able to verify that with wireshark or tcpdump. > > > > If that's the case, the client (Node) won't find out that the > > connection is down until later. Possibly much later. -- 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
