Common Parameters and basic usage of ipvsadm In the Server Load balancer cluster, and ipvsadm In the Server Load balancer Cluster

Common Parameters and basic usage of ipvsadm In the Server Load balancer cluster, and ipvsadm In the Server Load balancer Cluster

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Fixed Scheduling

Rr: Argument

Wrr: weighted argument
Weight, weighted

Sh: source hash, source address hash

Dynamic Scheduling
Lc: Minimum Link
Active * 256 + inactive
Wlc: weighted least Link
(Active * 256 + inactive)/weight
Sed: Minimum Expected latency
(Active + 1) * 256/weight
Nq: never queue (never queuing)

LBLC: local-based least Link
LBLCR: Least link based on local replication function

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Lvs

Ipvsadm: a command line tool for managing cluster services
Manage cluster services
Add:-A-t | u | f service-address [-s sheduler]
{-T: TCP Cluster
-U: UDP protocol cluster} service-address: IP: PORT (socket)
-F: FWM: Firewall flag
Service-address: Mark Number
Modify:-E
Delete:-D-t | u | f service-address
Manage the RS of the Machine Service Center
Add:-a-t | u | f service-address-r server-address [-g | I | m] [-w weight]
-T | u | f service-address: a cluster service defined in advance
-R server-address: the address of an RS. In the NAT model, IP: PORT can be used for PORT ing:
[-G | I | m]: lvs type
-G: DR
-I: TUN
-M: NAT
[-W weight]: defines the weight.
Modify:-e
Delete:-d-t | u | f serrvice address-r service-add
# Ipvsadm-a-t xx. xx: 80-r xx. xx-m

View
-L | l
-N: IP address and port number displayed in numeric format
-- Stats: Statistical Information
-- Rate: rate
-- Timeout: Display TCP/TCPFIN/UDP session timeout duration
-- Sort: Sorting
-C: displays the link status of the current IPVS.

-Z: clears the counter.
-C: Clear ipvs rules
-S: Use output redirection to save rules
# Ipvsadm-S> /../..
-R: use input redirection to load rules
# Ipvsadm-R </../..