By default, WSO2 IoT Server uses the embedded H2 database as the database for storing user management and registry data. Given below are the steps you need to follow in order to use a PostgreSQL database for this purpose.
Before you begin
Setting up configuration files
The default datasource configurations are defined in the files listed below.
The datasource configuration options are as follows:
- url - The URL of the database.
username - The name of the database user.
- password - The password of the database user.
- driverClassName - The class name of the database driver.
- maxActive - The maximum number of active connections that can be allocated from this pool at the same time, or enter a negative value for no limit.
- maxWait - The maximum number of milliseconds that the pool will wait (when there are no available connections) for a connection to be returned before throwing an exception. You can enter zero or a negative value to wait indefinitely.
- minIdle - The minimum number of active connections that can remain idle in the pool without extra ones being created, or enter zero to create none.
- testOnBorrow - The indication of whether objects will be validated before being borrowed from the pool. If the object fails to validate, it will be dropped from the pool, and another attempt will be made to borrow another.
- validationQuery - The SQL query that will be used to validate connections from this pool before returning them to the caller.
validationInterval - The indication to avoid excess validation, and only run validation at the most, at this frequency (time in milliseconds). If a connection is due for validation but has been validated previously within this interval, it will not be validated again.
For more information on other parameters that can be defined in the
master-datasources.xmlfile, see Tomcat JDBC Connection Pool.
Creating database tables
Create the following database tables either manually or automatically.
|Database||DB Script name and Location|
Using the script
You can create database tables manually by executing the following script:
Run the PostgreSQL script individually for the latter mentioned databases that are provided with the product using the below command (outside the PostgreSQL prompt):
Enter the password for each command when prompted.
- Start the WSO2 IoT Server as follows:
Using a startup parameter
You can create database tables automatically when starting the product for the first time by running the following command: