How to create a SpringCloud registry cluster

This article introduces the knowledge of "how to create a SpringCloud registry cluster". In the operation of practical cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Cluster environment construction

Step 1: we build two new registry projects, one is called eureka_register_service_master, the other is called eureka_register_service_backup

The application.properties configuration for eureka_register_service_master is as follows:

Server.port=7998eureka.client.register-with-eureka=falseeureka.client.fetch-registry=falsespring.application.name=eureka-servereureka.instance.hostname=mastereureka.client.serviceUrl.defaultZone= http://backup:7999/eureka/# is configured with the address of backup.

The application.properties configuration for eureka_register_service_backup is as follows

Server.port=7999eureka.client.register-with-eureka=falseeureka.client.fetch-registry=falsespring.application.name=eureka-servereureka.instance.hostname=backup# what is configured here is the address of master, eureka.client.serviceUrl.defaultZone= http://master:7998/eureka/

The above configured ports are

Master port is 7998backupr port is 7999

Step 2: add startup files: ApplicationMaster.java,ApplicationBackUp.java

The content of the code is the same.

@ EnableEurekaServer@SpringBootApplicationpublic class ApplicationMaster {public static void main (String [] args) {SpringApplication.run (ApplicationMaster.class, args);}} @ EnableEurekaServer@SpringBootApplicationpublic class ApplicationBackUp {public static void main (String [] args) {SpringApplication.run (ApplicationBackUp.class, args);}}

Step 3: start

If it is jar startup, you need to add parameters-- spring.profiles.active=matser or-- spring.profiles.active=backup.

The first method is to start it through the jar command

Java-jar eureka_register_service_matser-1.0.0.jar-spring.profiles.active=matser java-jar eureka_register_service_backup-1.0.0.jar-spring.profiles.active=backup

The second is to start through eclipse right-click Run As.

Parameters need to be added as follows

Step 4: view the interface

Open http://127.0.0.1:7998/ and http://127.0.0.1:7999/ respectively as shown below

You can see it from the picture above.

Port 7998 is matser. Its registered-replicas points to http://backup:7999/eureka/.

Port 7999 is backup. Its registered-replicas points to http://master:7999/eureka/.

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