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我想用FReeBSD负载在均衡~！高手请指教~！
Config document from offical site..
http://turtle.ee.ncku.edu.tw/sgcluster/configuration.html
CONFIGURATION
edit system config files
There is an editor 'ee' bundled in SG system disk, you can use 'ee' to edit the configuration files under /etc
/etc/rc.conf.local
this file contains hostname information, see below for example
1 hostname="ds211.ee.ncku.edu.tw" # Set this!
2
3 gateway_enable="YES" # Set to YES if this host will be a gateway.
4 firewall_enable="YES" # firewall (see /etc/rc.firewall) or NO
line 1: set the hostname of the SG load balancer
/etc/ sg.conf
this file contains the configuration information of SG system, see below for example
1 # SG CLUSTER CONFIGURATION, CHANGE FOR YOUR NEED!!!
2
3 sgpath="/stand" # where sg related program is
4 temporary_ip="10.0.0.1" # ip before start sg
5 temporary_gw="10.0.0.253" # gateway before start sg
6
7 public_interface="fxp0"
8 private_interface="fxp1"
9
10 default_gw="140.116.72.253"
11
12 public_ip="140.116.72.136"
13 public_netmask="255.255.255.0"
14 private_ip="192.168.1.253"
15 private_netmask="255.255.255.0"
16
17 group_ip="140.116.72.137 140.116.72.138"
18
19 # map real servers to server group
20 natd_parameter="
21 -redirect_address 192.168.1.1 140.116.72.137
22 -redirect_address 192.168.1.2 140.116.72.137
23 -redirect_address 192.168.1.3 140.116.72.137
24 -redirect_port tcp 192.168.1.2:23 140.116.72.138:23
25 -redirect_port tcp 192.168.1.3:23 140.116.72.138:23
26 -redirect_port tcp 192.168.1.4:23 140.116.72.138:23
27 "
28
29 # username/passwd used by sgcmd to connect sgctrld
30 username="dslab"
31 password="dslab"
32
33 # init command sent to sgctrld
34 init_command="
35 set g 140.116.72.137:0 keyport_list 0
36 set g 140.116.72.137:0 s 192.168.1.1:0 weight 2
37 set g 140.116.72.137:0 s 192.168.1.2:0 weight 1
38 set g 140.116.72.137:0 s 192.168.1.3:0 weight 1
39 set g 140.116.72.138:23 keep_same_server 1
40 set g 140.116.72.138:23 keyport_list 0 23/tcp
41 set g 140.116.72.138:23 s 192.168.1.2:23 weight 1
42 set g 140.116.72.138:23 s 192.168.1.3:23 weight 1
43 set g 140.116.72.138:23 s 192.168.1.4:23 weight 2
44 "
45
46 # THERE SHOULD NO NEED TO CHANGE FROM BELOW ########################################
47
48 bidd_ip="234.5.6.7" # multicast group ip for bidd
49 bidd_port="3456" # port for bidd
50 bidd_master_heartbeat_interval="8"
51 bidd_master_timeout="10"
52 bidd_bid_timeout="3"
53 bidd_start_script="$sgpath/sgstart.sh"
54 bidd_stop_script="$sgpath/sgstop.sh"
55 bidd_continue_script="$sgpath/sgcontinue.sh"
56
57 sgmon_calc_status_interval="10"
58 sgmon_port_test_interval="60"
59 sgmon_host_timeout="2"
60
61 sgctrld_passwd_file="/etc/sgctrld.passwd"
http://turtle.ee.ncku.edu.tw/sgcluster/images/sgexample.gif
line 7,8: set the name of public interface and private interface
Ethernet card supported by SG load balancer:
ed - NE2000, 3com 3C503 (ed0 port 0x300 irq10, ed1 port 0x320 irq11)
ie - 3com 30507, Intel Ether Express (ie0 port 0x280 irq5, ie1 port 0x340 irq 7)
de - DEC 21040/21140 based PCI card
fxp - Intel Ether Express pro
vr - DLink DFE530tx
xl - 3Com 3C900/3C905/3C905B
line 10: the default gateway for public interface
line 12-15: set the ip and netmask of the public interface and private interface
line 17: the ip of server groups (separated by space)
line 20-27: define servers in each server group
In this example, 2 server groups, 140.116.72.137:0 and 140.116.72.138:23, are defined, echo of them has 3 member server in the group.
line 30,31: the username/passwd used by web interface to login sgctrld
line 34-44: initial command sent to sgctrld to set SG properties,
property setting syntax:
set group [group_ip] [group_property] [value]
set group [group_ip] server [server_ip] [server_property] [value]
group property name description
name group name
active_flag 0=off, 1=on
keyport_list port list, 0 means icmp, NNN/udp=udp port, NNN/tcp=tcp port, where NNN=1..65535
select_method 0=roundrobin, 1=by_conn, 2=by_pkt, 3=by_clntip, 4=by_ext
keep_same_server 0=off, 1=on
failure_detect_by_packet_snoop 0=off, 1=on
recovery_detect_by_packet_snoop 0=off, 1=on
packet_delta_threshold pkt lost upper limit for each keyport
packet_timeout_threshold timeout upper limit for each keyport, unit:second
failure_detect_by_porttest 0=off, 1=on
recovery_detect_by_porttest 0=off, 1=on
porttest_error_threshold 0-65535
failure_detect_by_heartbeat 0=off, 1=on
recovery_detect_by_heartbeat 0=off, 1=on
heartbeat_timeout_threshold 0-65535
mcast_mode 0=deny, 1=bypass, 2=readwrite, 3=rdonly
multicast_addr multicast address for service program
mcast_error_threshold 0-65535
deny_interval deny interval for evil client
connection_count_limit 1-65535, limit per client, 0 no limit
connection_rate_limit 1-65535, limit per client, 0 no limit
finwait_tcp_limit 1-65535, limit per client, 0 no limit
server property name value
name server name
ac_list server access control list, ex: "140.116.72/24 !140.116.49.0/24"
weight 0-255
external_count a counter representing server load defined server program
status 0=dead, 1=pending, 2=alive
/etc/resolv.conf
set the dns server
/etc/hosts
local host table
set root password
use 'passwd root' to change root password of SG system
set sgctrld password
The password file of sgctrld is /etc/sgctrld.passwd, you can use
echo 'your_name:`makepwd your_passwd`'>;>;/etc/sgctrld.passwd
to add your_name/your_passwd to /etc/sgctrld.passwd
Or you can also 'ee' to edit the /etc/sgctrld.passwd directly to remove old account
synchronize all modification into floppy disk
When SG system boot up, all things are loaded into the ram disk, and your modification is also on the ram disk. You have to use 'update' to synchronize the change to the floppy disk.
reboot the SG system disk
If everything is right, you would see some message like 'bidd...BID->;MASTER' appears on the console. Try to telnet to the SG load balancer from remote host and browse the web page of 'http://your.load.balancer.hostname.or.ip'. If everything is right, congratulations! |
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发表于 2003-01-27 10:03
