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Building Meta's GenAI infrastructure
Marking a major investment in Meta’s AI future, we are announcing two 24k GPU clusters. We are sharing details on the hardware, network, storage, design, performance, and software that help us extr…
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Visit engineering.fb.com → RSS feedOn Hacker News Oct 2019 – Apr 2026
Software Engineering 19Infrastructure & DevOps 16Tools & Productivity 12Networking & Internet 12Systems & Performance 10Web & Frontend 8
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Migrating Facebook to MySQL 8.0
MySQL, an open source database developed by Oracle, powers some of Facebook’s most important workloads. We actively develop new features in MySQL to support our evolving requirements. These feature…
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Meta’s renewed commitment to jemalloc
Meta recognizes the long-term benefits of jemalloc, a high-performance memory allocator, in its software infrastructure. We are renewing focus on jemalloc, aiming to reduce maintenance needs and mo…
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Open-sourcing a more precise time appliance
Facebook engineers have built and open-sourced an Open Compute Time Appliance, an important component of the modern timing infrastructure. To make this possible, we came up with the Time Card — a P…
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More details about the October 4 outage
Now that our platforms are up and running as usual after yesterday’s outage, I thought it would be worth sharing a little more detail on what happened and why — and most importantly, how we’re lear…
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It’s time to leave the leap second in the past
The leap second concept was first introduced in 1972 by the International Earth Rotation and Reference Systems Service (IERS) in an attempt to periodically update Coordinated Universal Time (UTC) d…
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Cache made consistent: Meta’s cache invalidation solution
Caches help reduce latency, scale read-heavy workloads, and save cost. They are literally everywhere. Caches run on your phone and in your browser. For example, CDNs and DNS are essentially geo-rep…
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Update about the October 4th outage
To all the people and businesses around the world who depend on us, we are sorry for the inconvenience caused by today’s outage across our platforms. We’ve been working as hard as we can to restore…
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Running BGP in large-scale data centers
What the research is: A first-of-its-kind study that details the scalable design, software implementation, and operations of Facebook’s data center routing design, based on Border Gateway Protocol …
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Building a subsea cable to better connect Africa
Connectivity is at the heart of our mission to give people the power to build community. We are committed to bringing more people online to a faster internet — and with 3.5 billion people globally …
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How meta built the infrastructure for Threads
On July 5, 2023, Meta launched Threads, the newest product in our family of apps, to an unprecedented success that saw it garner over 100 million sign ups in its first five days. A small, nimble te…
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Making aerial fiber deployment faster and more efficient
Globally, more than 3.5 billion people are still not connected to the internet. With average data usage per person growing 20 to 30 percent annually, legacy bandwidth-limited technologies have been…
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Facebook reveals 'SuperCell' tower to increase connectivity in rural areas
As part of our efforts to help expand connectivity around the world, Facebook Connectivity has been prototyping SuperCell, a wide-area coverage solution for increasing mobile connectivity in rural …
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Scribe: Transporting petabytes per hour via a distributed, buffered queueing
Our hardware infrastructure comprises millions of machines, all of which generate logs that we need to process, store, and serve. The total size of these logs is several petabytes every hour. The o…
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Leveraging AI for efficient incident response
We’re sharing how we streamline system reliability investigations using a new AI-assisted root cause analysis system. The system uses a combination of heuristic-based retrieval and large language m…
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Maintaining large-scale AI capacity at Meta
Meta is currently operating many data centers with GPU training clusters across the world. Our data centers are the backbone of our operations, meticulously designed to support the scaling demands …