Autonomous testing of services at scale

Enabling developers to prototype, test, and iterate on new features quickly is important to Facebook’s success. To do this effectively, it’s key to have a stable infrastructure that doesn’t introduce unnecessary friction. This gets significantly more challenging when the infrastructure in question must also scale to support more than 3 billion people...

1d

Facebook engineers receive 2021 IEEE Computer Society Cybersecurity Award for static analysis tools

Until recently, static analysis tools weren’t seen by our industry as a reliable element of securing code at scale. After nearly a decade of investing in refining these systems, I’m so proud to celebrate our engineering teams today for being awarded the IEEE Computer Society’s Cybersecurity Award for Practice for development and deployment of static...

1d

RTMP Go Away: Lossless reconnections for live streaming

What it is: Real Time Messaging Protocol (RTMP) is a popular media streaming protocol that uses Transmission Control Protocol (TCP) persistent connections. When a connection between a live-streaming client and the platform is interrupted, data from the live event is lost until the client can reconnect to a new server. RTMP Go Away is a new mechanism...

2d

Inside the Lab: Expanding connectivity by sea, land, and air

The post Inside the Lab: Expanding connectivity by sea, land, and air appeared first on Facebook Engineering.

2w

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 learning from it.  This outage was triggered by the system that manages our global backbone network capacity. The backbone is the network Facebook has built...

3w

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 access, and our systems are now back up and running. The underlying cause of this outage also impacted many of the internal tools and systems we use in our...

3w

Open-sourcing Mariana Trench: Analyzing Android and Java app security in depth

We’re sharing details about Mariana Trench (MT), a tool we use to spot and prevent security and privacy bugs in Android and Java applications. As part of our effort to help scale security through building automation, we recently open-sourced MT to support security engineers at Facebook and across the industry.  This post is the third in our series...

4w

2Africa Pearls subsea cable connects Africa, Europe, and Asia to bring affordable, high-speed internet to 3 billion people

Facebook invests in subsea cables as part of our continued efforts to build the infrastructure that carries internet traffic and helps bring more people online to a faster internet. Today, we are thrilled to announce, along with regional and global partners, a new segment of subsea cable called 2Africa Pearls, which connects three continents — Africa,...

4w

Superpack: Pushing the limits of compression in Facebook’s mobile apps

Managing app size at Facebook is a unique challenge: Every day, developers check in large volumes of code, and each line of code translates into additional bits in the apps that people ultimately download onto their phones. Left unchecked, this added code would make the app bigger and bigger until eventually the time it takes to download would become...

Sep 2021

How WhatsApp is enabling end-to-end encrypted backups

For years, in order to safeguard the privacy of people’s messages, WhatsApp has provided end-to-end encryption by default ​​so messages can be seen only by the sender and recipient, and no one in between. Now, we’re planning to give people the option to protect their WhatsApp backups using end-to-end encryption as well. People can already back up their...

Sep 2021