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Apache OpenDAL: One Layer, All Storage - Universal Data Access Layer
Apache OpenDAL is a cloud-native data access layer that allows users to access data from different storage services in a unified way. It simplifies data management across various backends like object storage, filesystems, and more.
Rust
Added on 2025年5月12日4,101
Stars589
ForksRust
LanguageProject Introduction
Summary
Apache OpenDAL is a **data access layer** designed to provide **one layer for all storage**. It aims to empower users to access data freely across a wide range of storage services through a unified, high-performance, and reliable API.
Problem Solved
Developers often struggle with integrating multiple storage services (S3, GCS, Azure Blob, local files, HDFS, etc.) due to diverse APIs, inconsistent behaviors, and complex dependency management. OpenDAL provides a single, standard interface to abstract away these differences.
Core Features
Unified API
Provides a single, consistent API for interacting with over 30 different storage services.
High Performance
Designed for high performance, leveraging modern asynchronous programming techniques.
Extensible Backend Support
Easily add support for new storage backends without modifying core logic.
Reliable Operations
Handles retries, error handling, and connection management for reliable operations.
Tech Stack
Rust
Async IO
S3
GCS
Azure Blob Storage
HDFS
Local Filesystem
Etc. (30+ backends)
Use Cases
OpenDAL is highly valuable in any scenario requiring flexible, unified access to data stored in various locations.
Building Data Processing Applications
Details
Building data processing applications (like Spark, Flink connectors, data pipelines) that need to read from S3, write to HDFS, or process local files using a single codebase.
User Value
Write storage-agnostic data processing logic, increasing portability and reducing complexity.
Developing Multi-Cloud / Hybrid Applications
Details
Developing cloud-native services or applications where users might configure different storage backends (e.g., S3, Azure Blob, Google Cloud Storage) for storing application data.
User Value
Offer users flexibility in choosing their storage backend without adding significant complexity to your application's code.
Data Migration and Backup Tools
Details
Creating backup and restore tools or data migration utilities that need to move data between different storage systems seamlessly.
User Value
Simplify the implementation of tools that operate across diverse storage types.
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