Restarting Incomplete Backups to Wasabi

This article provides guidelines for MSP360 (formerly known as Cloudberry) customers who are using Wasabi for their Cloud Storage and have received "More than 65535 total parts uploaded for a single object" error on their backups. 

Below is an example of how this error looks on MSP360 Backup application:

InvalidArgumentMore than 65535 total parts uploaded for a single objectF3308D7D16A0152AUjav9ni0OglVUrSB2GcRjEVxzYWVyi0Cx3hLjykVcVzTGAh4UTEtNK6F1xGk8MBmEEMD2gjiPpS1
CloudBerryLab.S3Client.Exceptions.S3WebException
More than 65535 total parts uploaded for a single object
System.Net.WebException
The remote server returned an error: (400) Bad Request.

This document shows steps starting with the creation of a new storage entity in the Cloudberry (MSP360) explorer; however, you do NOT need to create this new entity to see your interrupted backups. You can see them with your existing one.

This example demonstrates that NOT all functionalities or regions are included in the Wasabi storage entity. However, they are in a generic S3-compatible bucket. This shows the steps for creating a new storage entity in regions that have not yet been added.

1. Open the Cloudberry Explorer application and select New Storage Account.

2. Select S3 Compatible.

Note: We are selecting S3 Compatible instead of Wasabi, which is an option here, because some of the newer Wasabi regions are not yet available via the application.

3. Add all required info here to create this connection to the correct service endpoint (Note: endpoint URLs for each region are listed in https://docs.wasabi.com/docs/what-are-the-service-urls-for-wasabi-s-different-storage-regions)

   Test the connection to confirm you can access your account.

The connection will be listed in Accounts, as shown in the screenshot.

4. Go back to the source and select the newly created connection.

5. From Tools, select Multipart Uploads option.

6. Select the account you just created, then select the Bucket on the right that contains the incomplete multi-part items from your backup job.

7. Once you see the list of job(s) that were incomplete due to 65535 total part issues, delete the incomplete backup.

Note that this image shows two different incomplete backups; you may have one or more backups in progress that may end up here if incomplete.

8. Go ahead and delete the incomplete backup that is having an issue.

Note: When you delete an incomplete backup here, it deletes all chunks that were successfully uploaded but have NOT reached the concatenation/reassembly stage due to upload retries/failures, and the counter increases by 1 to 65535. So now, everything for that backup is flushed, the counter is set to 0, and you start again.

9. Start the backup again using the Cloudberry Backup Application.