Netfilx Ribbon core interface
The actual request of the client
LoadBalancerClient
RibbonLoadBalancerClient
Load balancing context
LoadBalanceContext
RibbonLoadBalanceContext
Load Balancer
lLoadBalancer
BaseLoadBalancer
DynamicServerListLoadBalancer
ZoneAwareLoadBalancer
NoOpLoadBalancer
Rules Interface
IRule
Random Rules: RandomRule
The most available rules: BestAvailableRule
Round Robin rules: RoundRobinRule
Retry realization: RetryRule
Client Configuration: ClientConfigEnabledRoundRobinRule
You can filter rule: AvailabilityFilteringRule
RT weighting rules: WeightedResponseTimeRule
Avoid regional rules: ZoneAvoidanceRule
Check the machine is alive PING strategy
IPingStrategy
NoOping
DummyPing
PingConstant
PingUrl
NIWSDiscoveryPing
Load balancing client
main duty
LoadBalancerClient
Conversion url: URL containing the application name is converted into the form of specific host port +
Select the service instance: by load balancing algorithm, a specified server instance
Request a callback: After you select for the service instance, the implementation of a specific request callbacks
The default implementation
RibbonLoadBalancerClient
Automated assembly
RibbonAutoConfiguration#loadBalancerClient()
LoadBalancerContext
Conversion Url: URL containing the application name is converted into the form of specific host port +
Components association: association RetryHandler, ILoadBalancer etc.
Records Service statistics, records request response time, number of errors, etc.
The default implementation: RibbonLoadBalancerContext
Automated assembly
RibbonAutoConfiguration#loadBalancerContext()
ILoadBalancer
main duty
Increase server
Get the server: Get through the associated key, get a list of all services for a list of available services
Server Status: Server down marker
The default implementation: ZonnAwareLoadBalancer
Autowiring: RibbonAutoConfiguration # ribbonLoadBalancer ()
IRule
main duty
Server selection: the load balancer and associated key, obtaining a candidate server
The default implementation: ZoneAvoidanceRule
Autowiring: RibbonAutoConfiguration # ribbonRule ()
IPing
main duty
Activity Detection: according to the specified server to detect whether their activities
The default implementation: Dummyping
Autowiring: RibbonAutoConfiguration # ribbonPing ()
server list
ServerList
main duty
Get a list of server initialization
Get updates server list
The default implementation: ConfigurationBasedServerList or DiscoveryEnabledNiWSServerList
Automatic assembly: RibbonAutoConfiguration #
Netflix Ribbon autowiring
RibbonAutoConfiguration
LoadBalancerClient
PropertiesFactory
LoadBalancerAutoConfiguration
@LoadBalanced
rest Template
Ribbon client configuration
RibbonClientConfiguration
LoadBalancerContext
IRule
IPing
ServerList
ILoadBalancer
IClientConfig
Netflix Ribbon configuration of components
PropertiesFactory
ILoadBalancer
iPing
IRule
ServerList
ServerListFilter
Call link
Select the server logic
LoadBalancerClient(RibbonLoadBalancerClient)->ILoadBalancer(ZonnAwareLoadBalancer)->IRule(ZoneAvoidanceRule)