Monitoring
Spanner Migration Tool tracks the updates for schema migration, data migration and foreign key update. This information is polled from the backend at 5 sec intervals and presented in the UI with separate progress bars. In case of an error during migration, the state of these progress bars is marked as canceled. After the successful completion of migration the generated resources are presented to the users for utilization.
In the context of minimal downtime migrations, monitoring is currently only limited to the initial job orchestration.
In case of minimal downtime migration with GoogleSQL dialect, the foreign keys are applied along with the schema migration.
Table of contents
Progress bars
Generated resources
For the different types of migration following are the list of resources generated:
- POC migration - Link to spanner database created and the GCS bucket which has the
session file
written to it. - Minimal downtime migration - Link to spanner database created, GCS bucket with
session file
, datastream and dataflow job launched.