Francois Gerthoffert created UNOMI-849:
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Summary: Improve Unomi migration procedure by automatically
executing migration scripts
Key: UNOMI-849
URL: https://issues.apache.org/jira/browse/UNOMI-849
Project: Apache Unomi
Issue Type: Improvement
Reporter: Francois Gerthoffert
Fix For: unomi-2.6.0
When datamodel changes are present between versions of unomi, migration script
are present to handle the transformation.
These scripts have to be launched manually (using unomi:migrate) during the
migration procedure, but the challenge is that they can only be launched on one
single unomi node while all the other nodes are shut down.
We're in a situation where an upgrade is simple when there are no data model
changes, but more tedious when there are. Since we do not automatically know
when such migration scripts need to be executed, it is prone to error (either
we remember to indicate this in the changelog notes, or we request it to be
done for every single upgrade even if there are no changes requiring migration
scripts).
This ticket aims to improve the migration procedure by having the necessary
migration scripts executed automatically when starting a newer version of Unomi.
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