how to setup a database

1. Install MariaDB Server

• MariaDB 10.1 Series or
• later release

2. Create db.conf file in ../src/resources directory^1

• You'll find an example file at ../src/resources/db.conf.example
• Or just copy following code:

db {
  url      = "jdbc:mysql://localhost:3306/clustering?zeroDateTimeBehavior=convertToNull"
  driver   = "com.mysql.jdbc.Driver"
  username = "..."
  password = "..."
}

❗ Check your host, port and database name

3. Increase max_connections size

• login as root user into mysql console
• check amount of current max_connections size w/ following command:

MariaDB [(none)]> select @@max_connections;

• set max_connections to desired amount w/ following command:

MariaDB [(none)]> set global max_connections = 1000;

^1 or add your db.conf when starting the cluster master node as parameter --db db.conf.