Research On ILink Platform Load Balancing Schedule

The volume of freight is becoming bigger and bigger in recent years,the Infosky Cargo Data Exchange Platform ILink will be proposed a certain test without doubt.Now the ILink platform is using a static weighted round robin algorithm to ensure the load balancing system,but the algorithm has some disadvantages,such as the fault tolerance performance is poor.The algorithm is too simple to cause some nodes overburdened even broken down,besides,collecting load information is either too late or too partical,and the threshold is defined as a static parameter,it can not be ajusted with the load condition,there is great need to improve it.Firstly,a chain network structure based on the existing technical architecture is proposed,it is designed with the idea that all computer nodes are orgnized with network structure in groups and chain structure between groups,besides it collects information by command-driven and loadcondition-driven mode.By using of the chain network structure in the cluster nodes,it guarantees the load information module and the load compute module working effectively,which does a foundation work for the dynamic load algorithm.Secondly,due to the existing characteristics of high complexity,variety of services and large scale of business,a dynamic load balancing algorithm for multi-service on ILink platform is proposed.According to the different user request,on one hand,the algorithm can adjust the load weight dynamiclly through the analysis of the four basic types of services and the real-time collection of four types' s resource consumption,on the other hand,a overload buffer mechanism is introduced to relax the overload node.As a result,the algorithm can solve the probulem of waiting time is too long,partly overload,partly broken down,aiming to achieve load balancing.At last,an adaptive threshold overload migration strategy based on load awareness is proposed.The method can ajust the overload threshold according to the reciving rate of a node and apply a load awareness strategy on the select of migration services which can select iteratively choose the least migration cost service to migrate.As a result,simulation expriment shows that it decreases the system rate,adds the throught about 1.2 percent,improves the utilization rate of resources,improves system reliability,gets a good communication performance.