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Hello.
I am setting up my second cluster using LVS. The first one went pretty
much without a hitch. This one is giving me problems, however. Everything
looks OK, as far as I can tell. I'm using direct routing to forward web
services to 3 real servers. Here is a screen dump of ipvsadm, ifconfig,
and route:
[root scripts]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:10:E0:01:F3:20
inet addr:192.168.1.204 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:1729333 errors:0 dropped:0 overruns:0 frame:1090
TX packets:292060 errors:0 dropped:0 overruns:0 carrier:0
collisions:1955 txqueuelen:100
Interrupt:11 Base address:0x6200
eth0:0 Link encap:Ethernet HWaddr 00:10:E0:01:F3:20
inet addr:192.168.1.231 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
Interrupt:11 Base address:0x6200
eth0:1 Link encap:Ethernet HWaddr 00:10:E0:01:F3:20
inet addr:192.168.1.236 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
Interrupt:11 Base address:0x6200
eth0:2 Link encap:Ethernet HWaddr 00:10:E0:01:F3:20
inet addr:192.168.1.214 Bcast:192.168.1.214
Mask:255.255.255.255
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
Interrupt:11 Base address:0x6200
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:8021 errors:0 dropped:0 overruns:0 frame:0
TX packets:8021 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
[root scripts]# ipvsadm
IP Virtual Server version 0.9.12 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.1.214:www wlc persistent 600
-> rs3.3rdlevldata.com:www Route 1 0 0
-> rs2.3rdlevldata.com:www Route 1 0 0
-> rs1.3rdlevldata.com:www Route 1 0 0
[root scripts]# route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
192.168.1.214 0.0.0.0 255.255.255.255 UH 0 0 0
eth0
192.168.1.236 0.0.0.0 255.255.255.255 UH 0 0 0
eth0
192.168.1.204 0.0.0.0 255.255.255.255 UH 0 0 0
eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0
eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0
eth0
=======================================================================
The real servers are 192.168.1 .221 .222 and .223. All have lo:0 set as
192.168.1.214 with the appropriate netmask and broadcast. ip_forward,
all/hidden, and lo/hidden all have values of 1 on the real servers. Here
is a screen dump of one of the real servers (221)
[root@rs1 /root]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:90:27:F1:2B:75
inet addr:192.168.1.221 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1675475 errors:0 dropped:0 overruns:0 frame:0
TX packets:1757787 errors:0 dropped:0 overruns:0 carrier:0
collisions:11364 txqueuelen:100
Interrupt:9 Base address:0x7000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.255.255.255
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:6016 errors:0 dropped:0 overruns:0 frame:0
TX packets:6016 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
lo:0 Link encap:Local Loopback
inet addr:192.168.1.214 Mask:255.255.255.255
UP LOOPBACK RUNNING MTU:3924 Metric:1
Destination Gateway Genmask Flags Metric Ref Use
Iface
192.168.1.214 0.0.0.0 255.255.255.255 UH 0 0 0 lo
192.168.1.221 0.0.0.0 255.255.255.255 UH 0 0 0
eth0
127.0.0.0 0.0.0.0 255.255.255.255 UH 0 0 0 lo
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0
eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0
eth0
==========================================================================
I'm sure I'm missing something easy, but I've been staring at these
servers so long I can hardly see straight. Any help would be greatly
appreciated.
David Rodrigues
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