Multipart upload

Object Storage allows you to store objects up to several terabytes in size (see Quotas and limits in Object Storage for details). The larger the object, the more likely the upload will fail with a network error. For this reason, it is more efficient to upload larger objects in smaller parts. This method of sending objects to Object Storage is called a multipart upload. For more information about multipart upload support, see General procedure for a multipart upload.

Multipart upload is supported by many of the Supported tools.

After opening a bucket overview in the Yandex Cloud management console, you might see the following messages:

• "N incomplete uploads."
• "Wait for the upload to complete or use the tool of your choice to end or delete the upload processes."
• "Some multipart uploads are not complete."

All these messages indicate that there are incomplete multipart uploads in your bucket. Do not ignore such messages, since the cost for storing an object is the same, regardless of whether it has fully uploaded. For details, see Object Storage pricing policy.

To delete an incomplete upload manually, follow this guide. You can also schedule auto-deletion of incomplete uploads for a bucket. To do this, create a lifecycle using the AbortIncompleteMultipartUpload action (for more information, see this guide).