How to Improve the Speed of Uploading Large Files over the Public Network? (Java SDK)

If the size of a file exceeds 100 MB, you are advised to upload the file using multipart upload over the public network. Multipart upload allows uploading a single object as parts separately. Each part is a part of consecutive object data. You can upload parts in any sequence. A part can be reloaded after an upload failure, without affecting other parts. Uploading multiple parts of an object using multiple threads concurrently can greatly improve the transmission efficiency.

For code examples, see Multipart Upload (SDK for Java).