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Hi all,
I'm very new to LVS but managed to configure it on Mandrake 10 (kernel
2.6.3-7mdksmp, had precompiled IP Virtual Server version 1.1.8
(size=4096) ). Its an LVS-TUN with weighted round robin. Configured as
follows:
ipvsadm -A -t 192.168.110.119:2004 -s wrr
ipvsadm -a -t 192.168.110.119:2004 -r 192.168.110.115:2004 -i -w 1
ipvsadm -a -t 192.168.110.119:2004 -r 192.168.110.114:2004 -i -w 1
It works fine and schedules server equally as expected. But time to time
it does something weird. All the connections are being redirected to one
of the real servers. It may do that for hours. I see the traffic on one
but not another but when I do 'ipvsadm -L --stats' number of connections
or byte count doesn't increase on any of the machines. If anyone knows
of any problems it'll be really appreciated.
I'm blindingly reading up on ARP issues, but I really simply don't
understand it.
Thank you,
Daniil
Just in case, here is network configuration of the director:
eth0 Link encap:Ethernet HWaddr 00:11:43:CD:2A:BB
inet addr:192.168.110.117 Bcast:192.168.110.255
Mask:255.255.255.0
inet6 addr: fe80::211:43ff:fecd:2abb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2062412 errors:0 dropped:0 overruns:0 frame:0
TX packets:1175592 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:244021035 (232.7 Mb) TX bytes:146769097 (139.9 Mb)
Base address:0xece0 Memory:fe1e0000-fe200000
eth0:0 Link encap:Ethernet HWaddr 00:11:43:CD:2A:BB
inet addr:192.168.110.119 Bcast:192.168.110.255
Mask:255.255.255.0
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)
Base address:0xece0 Memory:fe1e0000-fe200000
And realserver:
eth0 Link encap:Ethernet HWaddr 00:02:B3:C1:C4:1C
inet addr:192.168.110.115 Bcast:192.168.110.255
Mask:255.255.255.0
inet6 addr: fe80::202:b3ff:fec1:c41c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:20293688 errors:0 dropped:0 overruns:0 frame:0
TX packets:18432564 errors:0 dropped:0 overruns:11 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2120305323 (2022.0 Mb) TX bytes:3811572424 (3634.9 Mb)
Interrupt:16 Base address:0x4000
tunl0 Link encap:IPIP Tunnel HWaddr
inet addr:192.168.110.119 Mask:255.255.255.255
UP RUNNING NOARP MTU:1480 Metric:1
RX packets:556536 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:45011567 (42.9 Mb) TX bytes:0 (0.0 b)
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