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Re: LVS Active-Active, two instances ipvsadm

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: LVS Active-Active, two instances ipvsadm
From: David Manchado <david.manchado@xxxxxxxxxxxx>
Date: Wed, 5 May 2004 16:18:08 +0200
Hello,

googling I've found this link:
http://www.in-addr.de/pipermail/lvs-users/2002-August/006297.html

where Wensong says "Yes, it can work out, two load balancers can be backup 
each other. We are considering to add this flexible connection 
synchronization support in the future 1.1.x versions."

I've searching through change logs 
http://www.linuxvirtualserver.org/software/kernel-2.6/ChangeLog but I can't 
see if this support is currently provided in any IPVS netfilter module for 
any version of kernel.

Does somebody know if it's available in any IPVS version?

I have also noticed that /proc variables regarding to 
timeout /proc/net/ipv4/vs/timeout_* are not available for 2.6.X versions, is 
there any patch for this issue?

Thanks in advance,
David

El Martes, 4 de Mayo de 2004 08:58, David Manchado escribió:
> Hello there,
>
> I'm configuring a LVS system but I'd like to make it work in active-active
> mode non active-failover.
>
> I want to do this scenario because behind the LVS server will lay different
> LAN services (same services can be accessed by different public IP) so LVS1
> would be the active load-balancer (+firewall) for one network and LVS2 the
> active for the other network.
>
>                  INET
>
>
>                BACKBONE
>               /        \
>            LVS1 <-ha-> LVS2
>              \___________/   (Direct Routing)
>
>               REAL SERVERS
>
> I already know to get this work with active-active configuration for
> heartbeat, but ipvsadm (as far as I know) can't handle two instances on
> each server so LVS1 is master for one instance (and LVS2 works as backup)
> and LVS is backup for the instance running on LVS2 as master.
>
> I can configure my startup script for ipvsadm the rules file and many other
> things but the connections are stored
> at /proc/net/ip_vs,ip_vs_app,ip_vs_conn,ip_vs_stats so I think it can't
> handle more than one instance for ipvsadm ¿?
>
> Has ever someone configured this scenario?
>
> Thanks in advance!

-- 
David Manchado
System Administrator EUROCIBER
e: david.manchado@xxxxxxxxxxxx
t: +34 902 902 997
f: +34 91 338 1616
Public PGP key available at pgp.mit.edu
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