Different Load Balancing Methods: Dynamic, Static and Failure Mechanism

There are many algorithms and techniques available to intelligently balance client access requests across multiple server pools. The type of service or application being served, as well as the status of the servers at the time, will determine the technique that is chosen. These strategies can be combined to determine the best server for new requests. Which method is chosen depends on the current load. If the load is low, then a simple load balancing strategy will suffice. High load times call for more advanced strategies to ensure an even distribution of requests.
What are load balancing algorithms?
Load balancers are able to determine which device can best process an incoming data packet. This requires algorithms that distribute loads in a particular way.
There are many algorithms that can be used to distribute a load on an application or network layer. The effectiveness of load distribution mechanisms can be affected by algorithm selection, and consequently, the business and performance continuity.
We will discuss the benefits and drawbacks of many video algorithms used in load balancing solutions for both network and application layers.

1. Static Algorithm
Static Algorithms can be used for systems with very low load variations. The entire traffic is divided equally between the servers in a Static Algorithm. This algorithm requires detailed information about server resources to ensure good performance of processors. This information is determined at the beginning of the implementation.
The current system status does not affect the decision to load shift. The main problem with Static Load Balancing Algorithm is that load balancing tasks only work after they are created. This means it cannot be applied to other load balancing devices.
Round Robin
Multiple identical servers can be used to load balance servers and provide the same services. Each server is configured to use the same Internet domain name, but each one has its own unique IP address. A DNS server maintains a list of all IP addresses that are associated with the Internet domain. The addresses are returned in a rotational sequence after receiving requests for the IP Address that are related to the Internet domain.
2. Dynamic Algorithm
Dynamic Algorithm first searches for the lightest server on the network and gives it the preference to load balance. It requires real-time communication with the network to increase the system’s traffic. This section shows the current status of the system and allows for load management.
Dynamic Algorithm’s specialty is to make load transfer choices that match the current system state. This system allows processes to move in real-time from an underutilized machine to an extremely utilized machine.
Least Connection Algorithm
This algorithm determines the load distribution based on the number of connections on a node. The number of connections increases when a new one is established, and decreases when the connection ends or time out. The nodes with the fewest connections are chosen first.
The table below (Table I) lists the parameters and their descriptions.

PARAMETERSDESCRIPTIONNature Determines The behavior of the algorithm i.e. whether static or dynamic.OverheadDetermines the amount of overheads such as migration of tasks, inter-process communication etc. Implementing the algorithm requires a lot of overheads. This must be least so that algorithm can operate effectively.Throughput It is used to calculate the no. It is used to calculate the number of tasks that have been completed. It must be higher to achieve higher performance of algorithm.