How to resolve error when connect Hawkbit with MariaDB? - mysql

Question

I'm trying to config Hawkbit following this guide: https://www.eclipse.org/hawkbit/guides/runhawkbit/
In pom.xml:
<dependency>
<groupId>org.mariadb.jdbc</groupId>
<artifactId>mariadb-java-client</artifactId>
<scope>compile</scope>
</dependency>
In application.properties:
spring.jpa.database=MYSQL
spring.datasource.url=jdbc:mysql://localhost:3306/{SCHEMA_NAME}
spring.datasource.username={USER_NAME}
spring.datasource.password={PWD}
spring.datasource.driverClassName=org.mariadb.jdbc.Driver
But I got this error: https://paste.ubuntu.com/p/YDtFKxF4Vv/
How to resolve this?

Answer 1

Might be a bit late, but basically the Hawkbit server has database migration scripts (Flyway). Within the HawkBit database, there is a table reserved for tracking these migrations for backwards compatibility. This is the schema_version table.
The problem that you see here is that Flyway is trying to migrate the state of the database, but fails because it detects a previous migration that failed.
Caused by: org.flywaydb.core.api.FlywayException: Validate failed: Detected failed migration to version 1.0.1 (init )
at org.flywaydb.core.Flyway.doValidate(Flyway.java:1482)
at org.flywaydb.core.Flyway.access$100(Flyway.java:85)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:1364)
at org.flywaydb.core.Flyway$1.execute(Flyway.java:1356)
at org.flywaydb.core.Flyway.execute(Flyway.java:1711)
at org.flywaydb.core.Flyway.migrate(Flyway.java:1356)
at org.springframework.boot.autoconfigure.flyway.FlywayMigrationInitializer.afterPropertiesSet(FlywayMigrationInitializer.java:66)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1837)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1774)
... 98 common frames omitted
Easiest solution would be to start with a fresh database. But in the case that you have important data in the database, you could also truncate the schema_version table and rerun the Hawkbit server.