Use PostgreSQL Replace H2 Database to Store Metadata(Optional)

PostgreSQL is a RDBMS emphasizing extensibility and SQL compliance. In addition to default built-in H2 database, Apache HertzBeat (incubating) allow you to use PostgreSQL to store structured relational data such as monitoring information, alarm information and configuration information.

If you have the PostgreSQL environment, can be directly to database creation step.

Install PostgreSQL via Docker

1. Download and install the Docker environment
   Docker tools download refer to Docker official document。 After the installation you can check if the Docker version normally output at the terminal.

   $ docker -v
   Docker version 20.10.12, build e91ed57
2. Install PostgreSQL with Docker

   $ docker run -d --name postgresql -p 5432:5432 -e POSTGRES_USER=root -e POSTGRES_PASSWORD=123456 -e TZ=Asia/Shanghai postgresql:15       
   use$ docker psto check if the database started successfully
3. Create database in container manually or with script.

Database creation

1. Enter postgreSQL or use the client to connect postgreSQL service

   su - postgres
   psql
2. Create database named hertzbeat
   CREATE DATABASE hertzbeat;
3. Check if hertzbeat database has been successfully created
   \l

Modify hertzbeat's configuration file application.yml and switch data source

1. Configure HertzBeat's configuration file Modify hertzbeat/config/application.yml configuration file Note⚠️The docker container way need to mount application.yml file locally, while you can use installation package way to unzip and modify hertzbeat/config/application.yml
   Replace spring.database data source parameters, URL account and password.

spring:
  datasource:
    driver-class-name: org.h2.Driver
    username: sa
    password: 123456
    url: jdbc:h2:./data/hertzbeat;MODE=MYSQL

Specific replacement parameters are as follows and you need to configure account, ip, port according to the postgresql environment:

spring:
   config:
      activate:
         on-profile: prod
   datasource:
      driver-class-name: org.postgresql.Driver
      username: root
      password: 123456
      url: jdbc:postgresql://127.0.0.1:5432/hertzbeat
      hikari:
         max-lifetime: 120000

   jpa:
      database: postgresql
      hibernate:
         ddl-auto: update
      properties:
         hibernate:
            dialect: org.hibernate.dialect.PostgreSQLDialect

Start HertzBeat visit http://ip:1157/ on the browser You can use HertzBeat monitoring alarm, default account and password are admin/hertzbeat