Hi Young-Sang, What you see is probably that it takes one hour for the TCP Keepalives to detect that the other end of the tcp connection is dead. A better, and quicker, way for a target to detect that an initiator is no longer reachable is using NOP-OUT pings. I just sent a patch to the list to add this for iscsi. You could try building TGTD with that patch and see if it solves your problem. In order to activate it you need to specify '--iscsi noop_interval=5,noop_count=6' on the command line when you start TGTD. noop_interval and noop_count controls how frequently TGTD will send a NOP-OUT to the initiator and after how many failures it will tear down the connection. You probably shouldnt set this too low, to allow the session to survuve across a short network glitch, but something like 5,6 like above could be a good setting. It would allow you to detect and tear down the connection after ~30 seconds ronnie sahlberg On Tue, May 14, 2013 at 9:37 PM, YOUN-SANG KIM <mistkr@xxxxxxxxx> wrote: > tgtadm --lld iscsi --op show --mode conn --tid 1 > shows that tgtd keeps connecting for one hour, nevertheless initiator > (iPXE iscsi boot WIndows PC) is turned off normally > > When I restarted Windows with iPXE iscsi boot, one connection are > increased per each restart. > > Nevertheless initiator (iPXE iscsi boot WIndows PC) is turned off normally > why tgtd keeps connecting for one hour ? > > Can I reduce this keep-connection time ? > or can I disconnect all connection of specific target ? > -- > To unsubscribe from this list: send the line "unsubscribe stgt" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe stgt" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
