Hi :) when tailing the /var/log/messages I can see this : May 23 13:49:46 vasppslb1 nanny[12312]: The following exited abnormally: May 23 13:49:46 vasppslb1 nanny[12312]: Ran the external sending program to (<a href="http://10.11.11.20"> 10.11.11.20</a>) but didn't get anything back it seems thats Nanny does not update the ipvsadm routing table even if it get no answers from the real server : IP Virtual Server version 1.0.8 (size=65536) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn UDP 10.76.11.230:radius wrr -> 10.11.11.20:radius Masq 1 0 0 -> 10.11.11.19:radius Masq 1 0 0 Nanny's issue ?? <div>On 5/23/07, Mohamed HADROUJ (Gmail) <<a href="mailto:hadrouj@gmail.com"> hadrouj@gmail.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi, i've found a workaround to fix this problem : ipvsadm --set 0 0 0 this will set expiry time to 0s for UDP packet, but ... when a real server is offline the load balancer keeps sending incoming requests to it. Thanks for your help.<div> Regards <div>On 5/21/07, Herta Van den Eynde <<a href="mailto:herta.vandeneynde@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> herta.vandeneynde@gmail.com </a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On 21/05/07, Mohamed HADROUJ (Gmail) <<a href="mailto:hadrouj@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> hadrouj@gmail.com</a>> wrote: > Hi, > when entring the following command : ipvsadm -L -c -nI I get this result : > > IPVS connection entries > pro expire state source virtual destination > UDP 04:57 UDP <a href="http://10.11.11.225:32875" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">10.11.11.225:32875</a> <a href="http://10.11.11.230:1812" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> 10.11.11.230:1812</a> > <a href="http://10.11.11.19:1812" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">10.11.11.19:1812</a> > > Every request sets the counter to 5:00 > Thank you for your help > > > On 5/21/07, Mohamed HADROUJ (Gmail) <<a href="mailto:hadrouj@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> hadrouj@gmail.com</a>> wrote: > > I think also it's a persistence issue, because when i tried ipvsadm after > few minutes, the InActConn is initialized to 0. then the load balancer sends > the incoming request to the other server. here is an example : > > -I try to send several request : they all get answers but from the same > server > > -> RemoteAddress:Port Forward Weight ActiveConn InActConn > > UDP 10.11.11.230:radius wrr > > -> 10.11.11.20:radius Masq 1 0 0 > > -> 10.11.11.19:radius Masq 1 0 1 > > > > after few minutes : > > -> RemoteAddress:Port Forward Weight ActiveConn InActConn > > UDP 10.11.11.230:radius wrr > > -> 10.11.11.20:radius Masq 1 0 0 > > -> 10.11.11.19:radius Masq 1 0 0 > > > > and then all the requests coming to the load balancer are routed to the > other server : > > -> RemoteAddress:Port Forward Weight ActiveConn InActConn > > UDP 10.11.11.230:radius wrr > > -> 10.11.11.20:radius Masq 1 0 1 > > -> 10.11.11.19:radius Masq 1 0 0 > > > > How to fix this behaviour ? > > > > Regards, > > > > > > > > > > On 5/21/07, Herta Van den Eynde <<a href="mailto:herta.vandeneynde@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">herta.vandeneynde@gmail.com</a>> wrote: > > > On 21/05/07, Mohamed HADROUJ (Gmail) < <a href="mailto:hadrouj@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> hadrouj@gmail.com</a>> wrote: > > > > Hi All, > > > > I have some load balancing troubles using lvs/piranha, here is the > > > > description : > > > > when i use the ipvsadm command to view the statistics here what i get > : > > > > IP Virtual Server version 1.0.8 (size=65536) > > > > Prot LocalAddress:Port Scheduler Flags > > > > -> RemoteAddress:Port Forward Weight ActiveConn InActConn > > > > UDP 10.11.11.230:radius wrr > > > > -> 10.11.11.20:radius Masq 1 0 0 > > > > -> 10.11.11.19:radius Masq 1 0 1 > > > > > > > > the load balancer keeps forwarding the request to only one server. in > > > > addition of that the counter of the connection established is always > equal > > > > to 1. > > > > i've checked also in /var/log/messages, both servers are seen as > available. > > > > here is my config file : > > > > > > > > backup_active = 1 > > > > backup = <a href="http://10.11.11.229" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">10.11.11.229</a> > > > > backup_private = <a href="http://10.11.11.121" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> 10.11.11.121</a> > > > > heartbeat = 1 > > > > heartbeat_port = 539 > > > > keepalive = 6 > > > > deadtime = 18 > > > > network = nat > > > > nat_router = <a href="http://10.11.11.122" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> 10.11.11.122</a> bond0.499:1 > > > > debug_level = NONE > > > > virtual gw_radius { > > > > active = 1 > > > > address = <a href="http://10.11.11.230" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> 10.11.11.230</a> bond0.498:1 > > > > port = 1812 > > > > send_program = "radpwtst -s %h -noacct -noauth -auth_port 1812 > > > > -secret mysecret -status" > > > > expect = "OK" > > > > use_regex = "0" > > > > #load_monitor = uptime > > > > scheduler = wrr > > > > protocol = udp > > > > timeout = 6 > > > > reentry = 15 > > > > quiesce_server = 0 > > > > server GW_1 { > > > > address = <a href="http://10.11.11.19" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> 10.11.11.19</a> > > > > active = 1 > > > > weight = 1 > > > > } > > > > server GW_2 { > > > > address = <a href="http://10.11.11.20" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> 10.11.11.20</a> > > > > active = 1 > > > > weight = 1 > > > > } > > > > server GW_3 { > > > > address = <a href="http://10.11.11.21" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">10.11.11.21</a> > > > > active = 0 > > > > weight = 1 > > > > } > > > > } > > > > > > > > > > > > > > > > Thank you for your help > > > > Regards > > > > > > Might be a persistence issue. Did you try connecting from 2 different > > > nodes/PCs? > > > > > > Kind regards, > > > > > > Herta Mohamed, it looks like you posted an extract from the <a href="http://lvs.cf" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> lvs.cf</a> instead of the full file. Would you please look whether you have an entry "persistent = some value" in the "virtual gw_radius" part? If not, try adding a "persistent = 0". Note that depending on what's behind the load balancer, persistence may actually be what you need (in which case you could add e.g. "persistent = 18000", where the value equals 18000 seconds, or 5 hours). Also, in real life, when using persistence, ipvsadm may not show perfect balancing (e.g. people behind proxy servers will all connect from the same address, and therefore get connected to the same server, or some people may stay connected far longer than others). As long as the connections are reasonably spread out, you should be OK. Kind regards, Herta _______________________________________________ Piranha-list mailing list <a href="mailto:Piranha-list@redhat.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> Piranha-list@redhat.com</a> <a href="https://www.redhat.com/mailman/listinfo/piranha-list" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">https://www.redhat.com/mailman/listinfo/piranha-list</a> </blockquote></div> </div></blockquote></div>