Error message : DB006 : Could not acquire changelog lock when saving the database configuration

Symptom

Error message "DB006 : Could not acquire changelog lock" received when saving the database configuration in the Web Platform Administration Console

Environment

360 Web Platform
Postgre SQL
Windows
Linux

Cause

When the application is upgraded, or when the database configuration is updated, the Web Platform needs to ensure that the database schema architecture meets the needs of the application.

For that, the Web Platform application uses an external library called Liquibase. To avoid running different updates at the same time, this tool creates a lock for itself on the database, then processes the update.

For some reason (maybe a network issue, even a slight one) if this lock is not released when the schema update is finished, the DB006 error message will be generated.

Resolution

It is possible to unlock the Web Platform database by using the following SQL request on the Web Platform schema.

Warning : you must ensure that this schema is not used by another Web Platform application.

DELETE FROM databasechangeloglock

After this request, you will have to reconnect the database to the Web Platform by saving the database configuration in the Administration Console.

Keywords

database changelog change log lock locked schema

Product

Product or Product version

360 Web Platform

Languages

English US
English UK
French

Last updated over 3 years ago