load balancing problem
Mohamed HADROUJ (Gmail)
hadrouj at gmail.com
Tue May 22 00:17:14 UTC 2007
Hi Herta and thank you for your answers,
I've posted the full file lvs.cf...
I've added persistent = 0 and restarted pulse but it still doesn't work as I
wish, meaning "Round Roubing" on the real servers.
Regards,
On 5/21/07, Herta Van den Eynde <herta.vandeneynde at gmail.com> wrote:
>
> On 21/05/07, Mohamed HADROUJ (Gmail) <hadrouj at gmail.com> 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 10.11.11.225:32875 10.11.11.230:1812
> > 10.11.11.19:1812
> >
> > Every request sets the counter to 5:00
> > Thank you for your help
> >
> >
> > On 5/21/07, Mohamed HADROUJ (Gmail) <hadrouj at gmail.com> 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 <herta.vandeneynde at gmail.com> wrote:
> > > > On 21/05/07, Mohamed HADROUJ (Gmail) <hadrouj at gmail.com> 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 = 10.11.11.229
> > > > > backup_private = 10.11.11.121
> > > > > heartbeat = 1
> > > > > heartbeat_port = 539
> > > > > keepalive = 6
> > > > > deadtime = 18
> > > > > network = nat
> > > > > nat_router = 10.11.11.122 bond0.499:1
> > > > > debug_level = NONE
> > > > > virtual gw_radius {
> > > > > active = 1
> > > > > address = 10.11.11.230 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 = 10.11.11.19
> > > > > active = 1
> > > > > weight = 1
> > > > > }
> > > > > server GW_2 {
> > > > > address = 10.11.11.20
> > > > > active = 1
> > > > > weight = 1
> > > > > }
> > > > > server GW_3 {
> > > > > address = 10.11.11.21
> > > > > 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 lvs.cf 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
> Piranha-list at redhat.com
> https://www.redhat.com/mailman/listinfo/piranha-list
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/piranha-list/attachments/20070522/7dc35c20/attachment.htm>
More information about the Piranha-list
mailing list