Ultra Monkey load balancing configuration problems -- please help.

"Roxana Diaconescu" <[email protected]>
Newsgroups gmane.linux.highavailability.ultramonkey
Message-ID <[email protected]> 
Hi,

I am trying to set-up a configuration similar to:
http://www.ultramonkey.org/3/topologies/lb-eg.html

The only difference in my set-up is that I use only one NIC and all
machines are VMware boxes. Here is my set-up:

Director:
VIP: 192.168.141.150
DIP: 192.168.141.130

Real servers:

RIP1: 192.168.141.131
RIP2: 192.168.141.132

Service: my own httpd running on port 8000.

Director ifconfig output:

eth0      Link encap:Ethernet  HWaddr 00:0C:29:95:B5:17
          inet addr:192.168.141.130  Bcast:192.168.141.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe95:b517/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:594518 errors:0 dropped:0 overruns:0 frame:0
          TX packets:590465 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:41020866 (39.1 MiB)  TX bytes:43111091 (41.1 MiB)
          Interrupt:10 Base address:0x1400

eth0:0    Link encap:Ethernet  HWaddr 00:0C:29:95:B5:17
          inet addr:192.168.141.150  Bcast:192.168.141.150  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
          Interrupt:10 Base address:0x1400

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1027 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1027 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:100155 (97.8 KiB)  TX bytes:100155 (97.8 KiB)

Director netstat -rn output:

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.141.150 0.0.0.0         255.255.255.255 UH        0 0          0 eth0
192.168.141.0   0.0.0.0         255.255.255.0   U         0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
0.0.0.0         192.168.141.2   0.0.0.0         UG        0 0          0 eth0

Real server 1 ifconfig:

eth0      Link encap:Ethernet  HWaddr 00:0C:29:4E:52:AF
          inet addr:192.168.141.131  Bcast:192.168.141.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe4e:52af/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:311960 errors:0 dropped:0 overruns:0 frame:0
          TX packets:302738 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:25523184 (24.3 MiB)  TX bytes:17012809 (16.2 MiB)
          Interrupt:10 Base address:0x1400

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:658 errors:0 dropped:0 overruns:0 frame:0
          TX packets:658 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:160982 (157.2 KiB)  TX bytes:160982 (157.2 KiB)

lo:0      Link encap:Local Loopback
          inet addr:192.168.141.150  Mask:255.255.255.255
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

Real server 1 netstat -rn:

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.141.150 0.0.0.0         255.255.255.255 UH        0 0          0 lo
192.168.141.0   0.0.0.0         255.255.255.0   U         0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
0.0.0.0         192.168.141.254 0.0.0.0         UG        0 0          0 eth0
0.0.0.0         192.168.141.2   0.0.0.0         UG        0 0          0 eth0


Real server 2 ifconfig:

eth0      Link encap:Ethernet  HWaddr 00:0C:29:73:62:B3
          inet addr:192.168.141.132  Bcast:192.168.141.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe73:62b3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:311619 errors:0 dropped:0 overruns:0 frame:0
          TX packets:302311 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:25496712 (24.3 MiB)  TX bytes:16923264 (16.1 MiB)
          Interrupt:10 Base address:0x1400

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:726 errors:0 dropped:0 overruns:0 frame:0
          TX packets:726 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:179638 (175.4 KiB)  TX bytes:179638 (175.4 KiB)

lo:0      Link encap:Local Loopback
          inet addr:192.168.141.150  Mask:255.255.255.255
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

Real server 2 netstat -rn:

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.141.150 0.0.0.0         255.255.255.255 UH        0 0          0 lo
192.168.141.0   0.0.0.0         255.255.255.0   U         0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
0.0.0.0         192.168.141.254 0.0.0.0         UG        0 0          0 eth0
0.0.0.0         192.168.141.2   0.0.0.0         UG        0 0          0 eth0

Please find attached ldirectord.cf and the output of ipvsadm.

The problems are:

1) The weights of the services on real servers are always 0, no matter
what I set in the configuration file; I can edit them by hand, but
this seems to defeat the purpose of a configuration file.

2) I cannot start my service on the real servers -- they get killed by
some ldirectord side-effect.

Note: I tried the exact same with LVS NAT (by hand) and it worked.

Can anyone tell me if there is something obviously wrong with my configuration?

Thanks,
Roxana.
ldirectord.cf (application/octet-stream, 5.6 KB) - not displayed
adm_out (application/octet-stream, 395 B) - not displayed
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