43700cb838992fddef848cff7f1a37197b035ee0,mlflow/store/sqlalchemy_store.py,SqlAlchemyStore,_verify_schema,#Any#,101

Before Change

            mc = MigrationContext.configure(connection)
            diff = compare_metadata(mc, Base.metadata)
            if len(diff) > 0:
                _logger.error("Detected one or more differences between current database schema "
                              "and desired schema, exiting. Diff:\n %s",
                              pprint.pformat(diff, indent=2, width=20))
                raise MlflowException(
                    "Detected out-of-date database schema. Take a backup of your database, then "
                    "run "mlflow db upgrade %s" to migrate your database to the latest schema. "
                    "NOTE: schema migration may result in database downtime "

After Change

    @staticmethod
    def _verify_schema(engine):
        head_revision = SqlAlchemyStore._get_latest_schema_revision()
        current_rev = _get_schema_version(engine)
        if current_rev != head_revision:
            raise MlflowException(
                "Detected out-of-date database schema (found version %s, but expected %s). "
                "Take a backup of your database, then run "mlflow db upgrade %s" to migrate "
                "your database to the latest schema. NOTE: schema migration may result in "
                "database downtime - please consult your database"s documentation for more "
                "detail." % (current_rev, head_revision, str(engine.url)))

    @staticmethod
    def _get_managed_session_maker(SessionMaker):
        
        Creates a factory for producing exception-safe SQLAlchemy sessions that are made available

Instances