Check the Sui documentation or related tools to see if any completion notice or success marker is marked for your epoch in the database. This can typically be identified through monitoring the logs for success messages or checking the related tools for any success markers.

You might also follow the process using available monitoring tools that check the status of snapshot uploads and other node operations. These tools may provide a real-time update on the snapshot status through visual dashboards or alerting systems configured in your environment.

To check if the snapshot upload for a specific epoch is finished, you can verify whether there is a success marker present in the database checkpoint for the epoch. The absence of this marker, as indicated by the log message, suggests the process is still in progress.