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Hello,
I'm trying to do load balancing of incoming traffic to my applications. This
applications are not very smp friendly, and I want try to run some instances
according to number of cpus on single machine. And balance load of incoming
traffic/connections to this applications.
Looks like is should be similar to
http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.localnode.html
linux kernel 2.6.32 with or without hide interface patches. Tried different
configurations but could not see packets on application layer.
192.168.1.165 - eth0 - interface for external connections
195.0.0.1 - dummy0 - virtual interface, real application is binded to that
address.
Configuration is:
-A -t 192.168.1.165:1234 -s wlc
-a -t 192.168.1.165:1234 -r 195.0.0.1:1234 -g -w
#ipvsadm -L -n
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 192.168.1.165:1234 wlc
-> 195.0.0.1:1234 Local 1 0 0
#
Log:
[ 2106.897409] IPVS: lookup/out TCP 192.168.1.165:44847->192.168.1.165:1234 not
hit
[ 2106.897412] IPVS: lookup service: fwm 0 TCP 192.168.1.165:1234 hit
[ 2106.897414] IPVS: ip_vs_wlc_schedule(): Scheduling...
[ 2106.897416] IPVS: WLC: server 195.0.0.1:1234 activeconns 0 refcnt 2 weight 1
overhead 1
[ 2106.897418] IPVS: Enter: ip_vs_conn_new, net/netfilter/ipvs/ip_vs_conn.c
line 693
[ 2106.897421] IPVS: Bind-dest TCP c:192.168.1.165:44847 v:192.168.1.165:1234
d:195.0.0.1:1234 fwd:L s:0 conn->flags:181 conn->refcnt:1 dest->refcnt:3
[ 2106.897425] IPVS: Schedule fwd:L c:192.168.1.165:44847 v:192.168.1.165:1234
d:195.0.0.1:1234 conn->flags:1C1 conn->refcnt:2
[ 2106.897429] IPVS: TCP input [S...] 195.0.0.1:1234->192.168.1.165:44847
state: NONE->SYN_RECV conn->refcnt:2
[ 2106.897431] IPVS: Enter: ip_vs_null_xmit, net/netfilter/ipvs/ip_vs_xmit.c
line 212
[ 2106.897439] IPVS: lookup/in TCP 192.168.1.165:1234->192.168.1.165:44847 not
hit
[ 2106.897441] IPVS: lookup/out TCP 192.168.1.165:1234->192.168.1.165:44847 not
hit
[ 2107.277535] IPVS: packet type=1 proto=17 daddr=255.255.255.255 ignored
[ 2108.542691] IPVS: packet type=1 proto=17 daddr=192.168.1.255 ignored
As the result, server application does receive anything on accept(). I tried to
make dummy0 a hidden device and play with arp settings. But without result.
I will be happy to hear any idea how to do connection in this environment.
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