Seastar Alternatives

Seastar reviews and mentions

• A unified build system and dependency manager for C/C++ with Cargo's features
  3 projects | news.ycombinator.com | 15 Jun 2025

  Not to be confused with Scylla DB's "Seastar" C++ non-blocking event driven server SDK

  https://github.com/scylladb/seastar

• An Intro to DeepSeek's Distributed File System
  7 projects | news.ycombinator.com | 17 Apr 2025
• ScyllaDB no longer open source
  3 projects | news.ycombinator.com | 24 Dec 2024

  Seems that ScyllaDB takes advantage of https://seastar.io that shards across cores. It seems to still be open source (for the moment, at least). Wonder if other projects could benefit from its ideas.

• I want to share my latest hobby project, dbeel: A distributed thread-per-core nosql db written in rust
  3 projects | /r/rust | 13 Nov 2023

  I used glommio as the async executor (instead of something like tokio), and it is wonderful. For people wondering whether it's "good enough" or to use C++ and seastar (as I have thought about a lot before starting this project), take the leap of faith, it's fast - both in terms of run time and to code.

• How much reason is there to be multi-threaded in the k8s environment
  2 projects | /r/scala | 4 Jul 2023

  b) It's proven now e.g Seastar, Glommio that the fastest way to run a multi-threaded application is to have one instance with one thread pinned per CPU core. Then to have fibers/lightweight threads on top handling all of the asynchronous code. Your approach of lots of instances is the slowest so there will be a ton of unnecessary thread context-switching.

• Are You Sure You Want to Use MMAP in Your Database Management System?
  3 projects | news.ycombinator.com | 2 Jul 2023

  The most common example is DPDK [1]. It's a framework for building bespoke networking stacks that are usable from userspace, without involving the kernel.

  You'll find DPDK mentioned a lot in the networking/HPC/data center literature. An example of a backend framework that uses DPDK is the seastar framework [2]. Also, I recently stumbled upon a paper for efficient RPC networks in data centers [3].

  If you want to learn more, the p99 conference by ScyllaDB has tons of speakers talking about some interesting challenges.

  [1] https://www.dpdk.org/.

  [2] https://github.com/scylladb/seastar

  [3] https://github.com/erpc-io/eRPC

• Why does Actix-web's handler not require Send?
  3 projects | /r/rust | 18 Jun 2023

  I assume Tokio itself, see e.g monoio or glommio, but also Seastar for C++.

• What is DPDK library in C and how to learn it?
  1 project | /r/C_Programming | 27 Apr 2023

  https://core.dpdk.org/supported/ lists supported nics. You're best just reading material from the dpdk website for figuring out roughly what it is. It is used for a lot of different goals. For most web C++ stuff it's mainly used because you can avoid round trips of data passing through the kernel and can reference network data without tons of copying. For an example check out the SeaStar framework, https://seastar.io/, which is under the hood of ScyllaDB.

• How Numberly Replaced Kafka with a Rust-Based ScyllaDB Shard-Aware Application
  1 project | /r/apachekafka | 17 Apr 2023

  As this is a Kafka sub, this may be a good opportunity to mention that Redpanda is based on the same framework (seastar) as Scylla. The idea of sharding work to CPU cores turns out to apply very well to the Kafka data model, too!

• What are some C++ projects with high quality code that I can read through?
  8 projects | /r/cpp_questions | 16 Jan 2023

  Seastar which is a thread per core runtime written by the Scylla devs thats used in both Redpanda and Scylla as the underlying runtime. https://github.com/scylladb/seastar

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