This article describes how to avoid checksum validation issues after upgrading to the 4.3.5 version of Liquibase
Purpose
After updating to the Liquibase version 4.3.5, we can get ValidationFailedException during enabling the module for the tenant.
Options
- Maven command
- Application property
- RunOnChange attribute with precondition
Step-by-step guide
Maven command
We can clear and recalculate the Liquibase checksum using mvn liquibase:clearCheckSums command. The disadvantage of this option is that we have to do some manual work each time we are facing this issue.
Application property
The other option is to add a new property to our application properties: spring.liquibase.clear-checksums
= true. The disadvantage of this option is that we are disabling the benefits of checkSums.
RunOnChange attribute with precondition
This is the most convenient way to solve this problem. Each time we are writing the script to create some table, we need to add the runOnChange parameter to the changeSet and use precondition to not run this script if the table already exists.
The example of creating the table with this params:
<?xml version="1.1" encoding="UTF-8" standalone="no"?> <databaseChangeLog xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.liquibase.org/xml/ns/dbchangelog" xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.4.xsd"> <changeSet id="01_create_test_table" author="testUser@folio.com" runOnChange="true"> <preConditions onFail="MARK_RAN"> <not> <tableExists tableName="test_table"/> </not> </preConditions> <createTable tableName="test_table"> <column name="id" type="SERIAL"> <constraints nullable="false" primaryKey="true"/> </column> <column name="test_value" type="jsonb"> <constraints nullable="false"/> </column> </createTable> </changeSet> </databaseChangeLog>
Useful links
runOnChange liquibase property - https://docs.liquibase.com/concepts/changelogs/attributes/runonchange.html
liquibase precondition - https://docs.liquibase.com/concepts/changelogs/preconditions.html