S3 Egress Fails While Uploading Parts

[kkeirstead]

Description

When egressing an artifact to S3, the following exception occurs: Microsoft.Diagnostics.Tools.Monitor.Egress.EgressException: S3 storage egress failed: S3 storage egress failed: Part number must be an integer between 1 and 10000, inclusive within DoWriteAsync. It appears that _parts.Count is 0 at this point, which is causing the exception.

Other information

As a workaround, using _parts.Count + 1 when uploading a part seems to resolve the issue (when _parts.Count is 0, this translates to uploading part 1) - more investigation is needed.