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Re: [Linux-cluster] LVS, not so fun today...



On 11/9/06, isplist logicore net <isplist logicore net> wrote:
Hi there,

> Do the ARP ping from anywhere. It might not be related at all to your
> problem but ARP problems will cause you no end of headaches with
> direct routing. The output should look something like this:

Testing from ANY machine including one of the real web servers works but not
from the load balancer, 192.168.1.52 (LB0);

#arping 192.168.1.150
ARPING 192.168.1.150 from 192.168.1.56 eth0
Unicast reply from 192.168.1.150 [00:20:94:10:44:A5]  1.193ms
Unicast reply from 192.168.1.150 [00:20:94:10:44:A5]  0.666ms

> Also, from your Load Balancer, please post the output of "curl -i
> http://192.168.1.92"; and the other real server IPs you have (93 and
> 94).

They all output the same, as they should, so I'll just post the one;

192.168.1.52# curl -i http://192.168.1.92/

HTTP/1.1 200 OK
Date: Thu, 09 Nov 2006 20:17:03 GMT
Server: Apache
Last-Modified: Mon, 28 Aug 2006 01:03:47 GMT
ETag: "4ef781-1679-7f8be2c0"
Accept-Ranges: bytes
Content-Length: 5753
Connection: close
Content-Type: text/html; charset=UTF-8

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Companions.com</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>

<body bgcolor="666699" text="ffffff" link="666699" vlink="666699"
alink="666699">
<table width="100%" border="0" cellpadding="0">
  <tr>
    <td><div align="left"><font size="6" face="Verdana, Arial, Helvetica,
sans-serif"><strong>Who
        Are <font color="#99FF33">You</font> Looking
For?</strong></font></div></td>
    <td>&nbsp;</td>
    <td>&nbsp;</td>
  </tr>
  <tr>


I went back and looked at this:

eth0      Link encap:Ethernet  HWaddr 00:20:94:10:44:A5
        inet addr:192.168.1.52  Bcast:192.168.1.255  Mask:255.255.255.0
        inet6 addr: fe80::220:94ff:fe10:44a5/64 Scope:Link
        UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
        RX packets:91631 errors:0 dropped:0 overruns:0 frame:0
        TX packets:8142 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:1000
        RX bytes:6004157 (5.7 MiB)  TX bytes:1402617 (1.3 MiB)

eth0:1    Link encap:Ethernet  HWaddr 00:20:94:10:44:A5
        inet addr:192.168.1.150  Bcast:192.168.1.150  Mask:255.255.255.255
        UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

and just wanted to make sure you are not setting up eth0:1 manually.
It will be added automatically by lvs. From the looks of that output
compared to what you have in your lvs config it looks like that is the
case.


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