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Re: SV: [Linux-cluster] LVS cluster



On Thursday 12 July 2007 10:31:18 Kristoffer Lippert wrote:
> That sounds interesting.
>
> So you have a std. ha cluster running the keepalived as a failover cluster
> service, and the webservers running outside the cluster (on the same
> machines). Then the keepalived does the loadbalancing. Is that correctly
> understood?
I suppose so. Keepalived runs as part of the rgmanager and your applications 
can ran on any node. The vip is a clusterip of rgmanager, going to be failed 
over with keepalived. (There also need to be some other tweeks within the 
kernel - iptables/.. keepalived without vrrp). And the application to be 
loadbalanced runs on all the nodes.
>
> Will this take care of session persistence?
Yes I think that is done via ipvs.
>
>
> Kind regards
> Kristoffer
Regards Marc.
>
> -----Oprindelig meddelelse-----
> Fra: linux-cluster-bounces redhat com
> [mailto:linux-cluster-bounces redhat com] På vegne af Marc Grimme Sendt:
> 11. juli 2007 18:40
> Til: linux clustering
> Emne: Re: [Linux-cluster] LVS cluster
>
> On Wednesday 11 July 2007 16:41:32 Kristoffer Lippert wrote:
> > One fairly simple question for a change. :-)
> >
> > We have two frontend webservers running a cluster to handle a SAN (gfs).
> > Would it be possible to run the LVS router on the same physical
> > machines as the cluster? Thus creating a fully redundant loadbalanced
> > cluster of our two frontend webservers.
> >
> > Currently we run with dns RoundRobin "load balancing". (Wich is not so
> > good in failover situations).
> >
> > Thanks in advance :-)
> > Mvh / Kind regards
> >
> > Kristoffer Lippert
> > Systemansvarlig
> > JP/Politiken A/S
> > Online Magasiner
> >
> > Tlf. +45 8738 3032
> > Cell. +45 6062 8703
>
> we've done this with keepalive (also) and some rgmanager skripts. It runs
> on the cluster as ha-service and makes loadbalancing.
>
> Regards Marc.
>
> --
> Gruss / Regards,
>
> Marc Grimme
> Phone: +49-89 452 3538-14
> http://www.atix.de/               http://www.open-sharedroot.org/
>
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-- 
Gruss / Regards,

Marc Grimme
Phone: +49-89 452 3538-14
http://www.atix.de/               http://www.open-sharedroot.org/

**
ATIX - Ges. fuer Informationstechnologie und Consulting mbH
Einsteinstr. 10 - 85716 Unterschleissheim - Germany

Registergericht: Amtsgericht München
Registernummer: HRB 131682
USt.-Id.: DE209485962

Geschäftsführung: Marc Grimme, Mark Hlawatschek, Thomas Merz



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