OSS limits a resumable upload to 10,000 parts. If your part size is too small, the total number of parts exceeds this limit and the upload fails with Too many parts, Please increase part size.
Increase the part size so that the total object size divided by the part size is less than 10,000.
Resumable upload limits
| Constraint | Value |
|---|---|
| Maximum number of parts per upload | 10,000 |
| Minimum part size | 100 KB |
| Maximum part size | 5 GB |
For the full API specification, see UploadPart.