Six--lvs persistent connections in the Linux cluster series

DR:

Arp_ignore = 1

Arp_announce = 2

Arrays: Variable Arrays

Array_name= ("" "" "")

DECLARE-A A variable is explicitly declared to be an array

Persistent connection of LVS:
Regardless of the algorithm used, the LVS persistent connection can be distributed from the same client request to the same RS for a certain amount of time.

Persistent connection template (memory buffer):

The mappings between each client and the RS assigned to it:

Ipvsadm-l-C Displays the current number of persistent connections

ipvsadm-a| E ...-p timeout: Specify the length of the connection, default 300 seconds

In SSL-based: A persistent connection is required:

PPC: The request from the same client to the same cluster service is always directed to the previously selected RS; 1-1

IPVSADM-E-T 192.168.10.11:80-s rr-p 600 Specifies the length of the persistent connection

PCC: Requests from the same client for all ports are always directed to the previously selected RS; 1-all

Ipvsadm-c

Ipvsadm-a-T 192.168.1.10:0-s-rr-p 600

Ipvsadm-a-T 192.168.1.10:0-R 192.168.1.12-g-W 2 (0 for all ports requests are Cluster service)

Ipvsadm-a-T 192.168.1.10:0-R 192.168.1.11-g-W 3

All ports are defined as cluster services and are forwarded to RS

PNMPP: Persistent firewall tag Connection 1-n

Preriuting

80:10

23:10

Mark two unrelated ports as a number and define the tag as a Cluster service (integer labeled 0 to 99, as long as the firewall has not been used before)

Iptables-f-T Mangle

Iptables-a prerouting-i eth0-t mangle-p tcp-d 172.16.100.6--dport 80-j MARK--set-mark 1

Iptables-a prerouting-i eth0-t mangle-p tcp-d 172.16.100.6--dport 443-j MARK--set-mark 1

Ipvsadm-a-F 1-s rr-p 3600

Ipvsadm-a-F 1-r 172.16.100.7-g-W 2

Ipvsadm-a-F 1-r 172.16.100.8-g-W 1

This article from "Operation and maintenance Growth Road" blog, declined reprint!

Six--lvs persistent connections in the Linux cluster series