Basic Concepts
Last updated: 2025-02-13 15:59:00
This article will introduce some basic concepts of Video on Demand (VOD) Pro, including bucket and objects.
Bucket
A bucket is a storage container used in Video on Demand (VOD) Pro applications. A single application can create buckets in multiple regions. It is a carrier of objects with no capacity limit.
Bucket Naming Conventions
Bucket names support user customization. The naming conventions are as follows:
Bucket names can consist only of lowercase letters（a-z）, numbers（0-9）, and hyphens (-).
Bucket names cannot start and end with hyphens (-).
Bucket names must be between 1 (min) and 40 (max) characters long.
The Region To Which the Bucket Belongs
The region to which the bucket belongs refers to the geographical location where the bucket data is actually stored. The VOD Pro Edition application can create buckets in multiple regions. You can choose to create a bucket in the region closest to your business to achieve low latency, low cost, and compliance.
Note:
Each VOD Pro application supports creating only one bucket per region, and the bucket region cannot be changed once selected. If you need to create multiple buckets in the same region within a single application, please contact us.
Private Network Access Domain Name Of the Bucket
VOD Pro application provides a private network access domain name for each bucket. Through this domain name, you can access objects in the bucket via the private network. If accessed within the same region, private network access is enabled, and both upload and download generate private network traffic, incurring no traffic fee. Please refer to Usages.
Object
Objects are the basic units of VOD Pro and can be data in any format (video, image, text, etc.). Buckets are the carriers of objects, and objects are stored in buckets.
Object Key
The object key is the unique identifier of an object in a bucket, which can be understood as a file path, such as 2025/01/01/hello.txt.
Naming Specification Of Object Key
You can use any UTF-8 characters. However, to ensure optimal compatibility with other applications, it is recommended to use English letters (a-z, A-Z), numbers (0-9), and their combinations.
The encoded length can be up to 850 bytes.
The name cannot start with a forward slash / or backslash \\.
The following strings are not allowed: %0a, %0d.
ASCII control characters such as upward arrow (↑), downward arrow (↓), rightward arrow (→), and leftward arrow (←) are not supported, corresponding to CAN (24), EM (25), SUB (26), and ESC (27) respectively.
Refrain from using special symbols such as * and % in the filename.
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