Dubbo-Uniformity HashSelector

Design and implementation of Dubbo adaptive load balancing with priority random load

Sample introduction

Dubbo-based stochastic load balancing

• The random strategy will first determine whether all Invokers have the same weight.

• If they are the same, then the process is relatively simple. Using random. nexInt (length) you can randomly generate an Invoker serial number

• Select the corresponding Invoker according to the serial number. If no weight is set on the service provider, then all Invoker weights are the same, default is 100.

• If the weights are different, then we need to combine the weights to set the random probability.

Random Load Balancing after Modification

• Get the address of a service from the locally currently registered provider service, and if it is the same as the IP of the current machine, get the provider first.

• If different, re-load the random load and retrieve a provider service