Use piranha to configure LVS

Use the piranha tool provided by RedHat to configure LVS

 

Yum-y install piranha

 

 

[[Email protected] ~] # Sed-n "/^ [^ #]/P"/etc/sysconfig/HA/LVS. cf

Serial_no = 18 # No.

Service = LVS # specify the service name of the dual Server

Primary = 10.2.16.250 # specify the real IP address of LVS

Network = direct # specify the LVS working mode. Direct indicates the Dr mode, Nat indicates the NAT mode, and tunnel indicates the Tun mode.

# Backup_active = 1 # Whether to activate the standby LVS scheduling server. If the value 0 indicates that the server is not activated, the value 1 indicates that the server is activated.

# Backup = 10.2.16.245 # specify the real IP address of the standby LVS scheduling server. If no standby ctor-server exists, use 0.0.0.0 instead.

# Heartbeat = 1 # indicates whether heartbeat is enabled. 1 indicates that heartbeat is enabled, and 0 indicates that heartbeat is disabled.

# Heartbeat_port = 539 # specify the UDP port for heartbeat

# Keepalive = 5 # Heartbeat interval, in seconds

# Deadtime = 10 # If the primary ctor-server does not respond after deadtime seconds, the Standby Director-server takes over the master

# Debug_level = none # define the debug information level

Virtual server1 {# Name of the virtual service provided by LVS to external users

Address = 10.2.16.252 eth0: 1 # VIP and network interfaces for external services

Vip_nmask = mask 255 # Set mask

Active = 1 # activate

Load_monitor = none? # LVS monitors the Load Status of real-server. The following describes how to run the rstatd service on the Real-server and ruptime on the Real-server.

Timeout = 5 # Remove the time required by the expired real-server from the LVS routing table after the real-server expires, in seconds

Reentry = 10 # The duration required to add a real-server to the LVS route table after it is removed. Unit: S.

Port = 80 # virtual service port

Send = "Get/HTTP/1.0 \ r \ n" # verification string sent to Real Server

Response Ct = "HTTP" # The text response information normally returned by the real-server is used to determine whether the real-server works normally.

Sched = RR # specify LVS to select RR Round Robin Scheduling Algorithm

Quiesce_server = 0 # If it is 1, when a new node joins LVS, the minimum number of connections is set to 0. Therefore, LVS sends a large number of requests to this node, causing service congestion, we recommend that you set it to 0.

Protocol = TCP # specify the protocol type

# Sorry_server = 127.0.0.1

Server real1 {# specify the service name of real-Server

Address = 10.2.16.253 # specify the real IP address of the Real-Server

Active = 1 # activate

Weight = 1 # weight

}

Server real2 {

Address = 10.2.16.254

Active = 1

Weight = 1

}

}

Run the nginx service on real-server, write and run the lvsrs script (for the script content, see another LVS configuration document in this blog ), specify the lo VIP of real-server as The lvs vip:

 

STARTUP script:

[[Email protected] ~] # Service lvsrs start

Start LVS of Real Server

 

Start the pulse service:

[[Email protected] ~] # Service pulse restart

Shutting down pulse: [OK]

 

View the LVS route table on Director-Server:

[[Email protected] ~] # Ipvsadm-ln

IP Virtual Server version 1.2.1 (size = 4096)

Prot localaddress: Port sched1_flags

-> Remoteaddress: port forward weight activeconn inactconn

TCP 10.2.16.252: 80 rr

-> 10.2.16.253: 80 Route 1 1 0

-> 10.2.16.254: 80 Route 1 1 0

 

Verification: Entering http: // 10.20..252/in the browser is successful!

 

 

This article is from the "fate" blog, please be sure to keep this source http://czybl.blog.51cto.com/4283444/1536507