02 三 07 LVS On FreeBSD Project
khan.chan {at} virest.org
http://blog.virest.org
LVS Project 是章文嵩博士创始的开源项目, 之前我写的一篇简单应用LVS 负载均衡Web Services的文章, 有关原理部分信息我想还是请出章老师的文章犒劳大家吧 .
http://www.ibm.com/developerworks/cn/linux/cluster/lvs/part1/index.html
http://www.ibm.com/developerworks/cn/linux/cluster/lvs/part2/index.html
http://www.ibm.com/developerworks/cn/linux/cluster/lvs/part3/index.html
http://www.ibm.com/developerworks/cn/linux/cluster/lvs/part4/index.html
今天给大家些tips 有关ipvsadm(IPVS)在FreeBSD下的应用.
Links articles from here: http://dragon.linux-vs.org/~dragonfly/htm/lvs_freebsd.htm
不太喜欢赘言, 给个大概的README:
dragonfly said:
Install:
1. Patch the FreeBSD kernel:
cp patch/OS-RELEASE/* /usr/src;
cd /usr/src;
patch -p0 < uipc_socket.c.patch
patch -p0 < ip_input.c.patch
patch -p0 < socketvar.h.patch
patch -p0 < sys_conf_options.patch
patch -p0 < sys_i386_conf_GENERIC.patch
2. Rebuilding FreeBSD kernel:
cd /usr/src/sys/arch/i386/conf;
config GENERIC;
cd ../compile/GENERIC;
make depend;
make;
make install;
3. Compile ipvs module:
cd ipvs/
make;
cd ipvsadm/
make install;
4. Compile ipvs scheduler module:
cd ipvs/
cd schedulers/
cd SCHEDULER-NAME/
make
5. Reboot with new kernel:
reboot;Let’s assume your cluster has the following configuration:
Workstation with address:192.168.1.23 runs as dispatcher(FE:front end),
Workstations with address:192.168.1.33 and 192.168.1.38 run as real server(BE:back
end).
Thay all share address:192.168.1.36,which is saw by client.Start:
Assume using ‘rr’ schedule algorithm(optional: dh, lblc, lblcr, lc, nq, rr,
sed, sh, wlc, wrr).
LVS/DR:
1. kldload ./ipvs.ko
2. kldload schedulers/rr/ip_vs_rr.ko
3. ./ipvsadm -A -t 192.168.1.36:80 -s rr
4. ./ipvsadm -a -t 192.168.1.36:80 -r 192.168.1.33:80 -g
5. ./ipvsadm -a -t 192.168.1.36:80 -r 192.168.1.38:80 -g
LVS/TUN:
1. kldload ./ipvs.ko
2. kldload schedulers/rr/ip_vs_rr.ko
3. ./ipvsadm -A -t 192.168.1.36:80 -s rr
4. ./ipvsadm -a -t 192.168.1.36:80 -r 192.168.1.33:80 -i
5. ./ipvsadm -a -t 192.168.1.36:80 -r 192.168.1.38:80 -i
Stop:
1. ./ipvsadm -C
2. kldunload ip_vs_rr
3. kldunload ipvs
Note: Do not use other commands of ipvsadm,for maybe it is not implemented.
Feedback
——–
Welcome your comments, bug reports, bug fixes, and ideas
Thanks,
Li Wang
[email protected]
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