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Add migrations troubleshoot warning #4629

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Nov 12, 2024
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Add migrations troubleshoot warning #4629

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7 changes: 7 additions & 0 deletions doc/platform/ddl_dml/migrations/troubleshoot_migrations_tt.rst
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Expand Up @@ -47,6 +47,13 @@ from etcd using ``tt migrations remove``:
Incorrect migration applied
---------------------------

.. warning::

Any schema change that was made by an incorrect migration before its fail or
cancellation must be resolved manually on each replica set before reapply.
``--force-reapply`` and other ``tt migrations`` options affect only internal
status of the migration and don't revert changes that it has made in the cluster.

If the migration is already applied, publish the fixed version and apply it with
the ``--force-reapply`` option:

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