LVS
lvs-users
Google
 
Web LinuxVirtualServer.org

Packet Storm w/ 2.4.3 & lvs 0.2.11

To: LVS Users <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Packet Storm w/ 2.4.3 & lvs 0.2.11
From: Doug Sisk <sisk@xxxxxxxxxxxxxxxxxxx>
Date: Sat, 21 Apr 2001 18:35:26 -0400
Hi,

I'm trying to implement a two box lvs cluster with failover.
I'm very close to having this working.  I have heartbeat installed
and configured to use both lans with UDP.  I test that the VIP (10.0.3.3)
switches when I disconnect either server.  They switch on a VIP of eth:0.
I then moved on to the load balancing portion.

This is what I have:

                client 10.0.3.5
                       |
                       |
            -------------------------    10.0.3.0/24
            |                        |
   eth0     | 10.0.3.1               | 10.0.3.2
          box 1                    box 2
   eth1     | 192.168.1.1            | 192.168.1.2
            |                        |
            --------------------------   192.168.1.0/24
                (cross-over cable)

Box 1 and 2 are both directors and servers. 

I'm using the latest 2.4.X patches (Apr 20th) and ipvsadm 1.17
I installed the following on both boxes:

ipvsadm -A -t 10.0.3.3:80 -s rr
ipvsadm -a -t 10.0.3.3:80 -r 10.0.3.1:80 -g -w 1
ipvsadm -a -t 10.0.3.3:80 -r 10.0.3.2:80 -g -w 1

I have apache listening on 10.0.3.3 and setup different
index pages so I could tell which real server I was hitting.

I fired it up and it kinda works.  It will switch back and forth
a few times then hang.  If I hit stop it will then work again
a few more times.  Looking at the activity LEDS on the hub I noticed
they were on solid between the two boxes.

I read as much as humanly possible of the HOWTO and figured it might
have something to do with the "arp problem" so I added the "hidden"
patch to both kernels, changed the VIP for the real servers to 10.0.3.4
(left it 10.0.3.3 for the Directors/HeartBeat), and ifconfig'd dummy0
on both boxes to 10.0.3.4, and turned hidden on in /proc/sys/net/...dummy0

I still get the packet storm.

I'm going to try to sniff the network and see what's going on but I'm
rapidly approaching areas where I'm a total novice.

I think there must be something stupid I'm doing ?

Thanks,
Doug


<Prev in Thread] Current Thread [Next in Thread>