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we wanna migrate our own local Confluence server to an Atlassian Confluence Cloud system. Thus we installed the Migration Assistant, but he crashed with the following error message:
org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getInitialState' in class com.atlassian.migration.agent.web.AppAction threw exception com.atlassian.util.concurrent.LazyReference$InitializationException: javax.persistence.PersistenceException: Failed to update database schema at /templates/app.vm[line 21, column 44]
caused by: com.atlassian.util.concurrent.LazyReference$InitializationException: javax.persistence.PersistenceException: Failed to update database schema
caused by: javax.persistence.PersistenceException: Failed to update database schema
caused by: liquibase.exception.LockException: Could not acquire change log lock. Currently locked by a5fc0ce0939e (172.23.0.2) since 10/14/19 1:04 AM
Our system is based on a H2 database (guess it is embedded) and we are using Confluence 7.0.1.
Any help is appreciated, because we need to move with our Confluence to the cloud and do not wanna loose all our stored knowledge or starting at zero. This would be a game stopper!
hello @Erhardt Barth ! Welcome to the Atlassian Community!
My biggest guess is that you're using H2 as a database which was not meant for production use. You may have to migrate from H2 to something such as PostgreSQL or MySQL before attempting the migration to cloud.
This link may help: https://confluence.atlassian.com/conf712/embedded-h2-database-1056672474.html
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