Core Insights - Amazon Web Services (AWS) has launched Amazon DocumentDB Serverless, a new configuration of Amazon DocumentDB that automatically scales compute and memory resources based on application needs, potentially saving up to 90% in costs compared to pre-provisioned resources [1][2]. Group 1: Product Features - Amazon DocumentDB Serverless introduces a new unit called DocumentDB Capacity Unit (DCU), which includes approximately 2 GiB of memory along with corresponding CPU and network resources [2]. - The service continuously monitors resource usage (CPU, memory, and network) during application execution and can automatically adjust DCUs without affecting database availability [2]. - Users can switch existing clusters from provisioned instances to serverless configuration without data migration, similar to changing instance types [2]. Group 2: Use Cases and Advantages - Amazon DocumentDB Serverless is suitable for dynamic workloads, such as handling peak traffic during promotional events, development and testing environments, and rapidly growing new applications [5]. - It allows flexible resource management across multiple databases in a multi-tenant environment, which is beneficial for enterprise applications or SaaS providers [5]. - The service can balance read and write capacity for workloads with fluctuating query traffic, enabling independent scaling of read and write instances to accommodate additional load [5]. Group 3: Availability and Pricing - Amazon DocumentDB Serverless is available in Amazon DocumentDB version 5.0 and supports both new and existing clusters, offering on-demand DCU billing by the second at a fixed rate [3].

Group 1 - Aerospace Information Co., Ltd. has applied for a patent titled "Database Access Management Method and Its Device, Electronic Equipment, and Storage Medium" with publication number CN120179726A, filed on December 2023 [1] - The patent describes a method for managing database access, which includes obtaining database configuration information and routing business data sources to the target database, thereby reducing code coupling complexity and achieving lightweight operations for business data processing [1] Group 2 - Aerospace Information Co., Ltd. was established in 2000 and is located in Beijing, primarily engaged in telecommunications, broadcasting, television, and satellite transmission services [2] - The company has a registered capital of 1,862.85 million RMB and has invested in 94 enterprises, participated in 4,448 bidding projects, and holds 4,515 patent records [2]