Company
Date Published
Author
Eugene Lazin
Word count
1120
Language
English
Hacker News points
None

Summary

Redpanda developed an HTTP client to integrate with the Seastar framework, addressing the lack of a compatible client library for Seastar's threading model. The new client facilitates operations like accessing the Amazon AWS API by incorporating features such as TLS 1.2, chunked encodings, and custom headers while ensuring efficient performance through zero-copy networking and asynchronous operations using Seastar futures. To overcome the complexity of protocol parsing and compatibility issues with existing libraries, Redpanda utilized Boost.Beast as a customizable request serializer and response parser. This allowed for efficient data handling with minimal memory usage and copying, by leveraging Redpanda's iobuf zero-copy buffer implementation. The client seamlessly interfaces with Seastar's input and output streams, enabling data streaming directly from disk to network without additional memory overhead. This approach not only optimizes performance but also provides flexibility for integrating with existing transport layers, maintaining standards compliance, and minimizing cache pollution.