How to load balance in Spring Boot Microservices?
We will use Spring Tool Suite for this example:
- Step 0: Create Microservice2 and run its two instances on ports: 8200 and 8201.
- Step 1 – Create Microservice1 and add the Ribbon dependency in your “pom.
- Step 2 – Create a configuration file with the @Configuration annotation.
Table of Contents
Can a database be load balanced?
Load balancing (at least from the point of view of SQL Server) does not exist (at least in the same sense as web server load balancing). You can’t balance the load that way. However, you can split your application so that it runs on some database on server 1 and also on some database on server 2, etc.
How do I upload a Balance Spring Cloud Gateway?
Steps to run the applications
- Install JDK 11 or newer.
- Clone the project’s git repository to local.
- Run the load balancing application first.
- Run the API gateway app.
- Then run the server app on two ports.
- Lastly, run the Client application.
How is load balancing implemented in Spring Cloud?
Spring Cloud load balancer (SLB) and Netflix Ribbon are two popular client-side load balancers used to handle such a situation. In this tutorial, we will use Spring Cloud Load Balancer.
What is client-side load balancing in Spring Boot?
The client makes a request using that public IP/DNS. The load balancer decides which internal application server to forward the request to. It mainly uses the round robin or fixed session algorithm. We call it server-side load balancing.
How is the load balanced in the database?
Load balancing on database servers is a typical method performed to distribute incoming network traffic and workload across multiple servers to decrease downtime and increase efficiency. There are some methods that can be used for load balancing i.e. HAProxy or MySQL Proxy.
Why are databases clustered?
Database clustering is the process of combining more than one server or instances connecting a single database. The main reasons for database clustering are the benefits a server receives; Data redundancy, Load balancing, High availability and, finally, Monitoring and automation.
What is the use of load balancer in Spring Cloud?
Spring Cloud Load Balancer provides a simple rotation rule for load balancing across multiple instances of a single service. Our goal here is to implement a rule that measures the response time of each application and gives it a weight according to that time.
What is the difference between client-side and server-side load balancing?
Server-side load balancing – All backend server instances are registered with a central load balancer. A client requests this load balancer which then routes the request to one of the server instances using various algorithms such as round robin. The clients are not aware of the backend servers.
How to create a microservice in Spring Boot?
We’ll also start looking at a basic implementation of a microservice with Spring Boot. We’ll create a couple of microservices and have them talk to each other using the Eureka nameserver and the ribbon for client-side load balancing. This is part 4 of this series. In this part, we will focus on using Ribbon for load balancing.
How to load spring boot microservices using tape?
Microservice2 will have its two instances running and Microservice1 will call Microservice2. Tape logic will be included in Microservice1 to load balance requests between the two Microservice2 instances. We will use Spring Tool Suite for this example:
How does server-side load balancer work in Spring Boot?
It then decides which server a particular request should be directed to based on some algorithm. The server-side load balancer acts as a single point of failure, in that if it fails, all instances of the microservice become inaccessible as only the load balancer has the list of servers.
How to use Spring Cloud for load balancing?
You will create a microservice application that uses Spring Cloud LoadBalancer to provide client-side load balancing on calls to another microservice. This guide walks through building two projects, one of which is a dependency of the other.