Configuration and use of Nacos external database

stay nacos When configuring the cluster , If you use its built-in database derby There will be asymmetry and asynchrony of data configuration .

The above is on the official website nacos Service configuration diagram . Let's assume that now nacos Yes 3 Taiwan machine .101,102,103. If you use the built-in service database , Then these three nacos Each has its own database . If we configure and register files in each machine , It's troublesome to modify . And you can't guarantee the synchronous update of data files . It is prone to omission and asymmetry . therefore nacos The official website provides us with the method of external database . Three nacos Uniform configuration nacos.

step ：

1. Build in your database nacos database . take mysql Script file import . The address of the script file ：https://github.com/alibaba/nacos/blob/master/distribution/conf/nacos-mysql.sql

2. modify nacos Medium mysql Connection configuration ：

spring.datasource.platform=mysql
 
db.num=1
db.url.0=jdbc:mysql://localhost:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true
db.user=root
db.password=123456

Be careful ： The location of this configuration must be in the location specified , If you can't find it mysql To configure . start-up nacos Will report a mistake , I can't get up .

When the configuration is complete , start-up nacos, You can change to your own mysql Database , Finally, Zhang Tu Zhenlou ：