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What the research is:  Kangaroo is a new flash cache that enables more efficient caching of tiny objects (objects that are ~100 bytes or less) and overcomes the challenges presented by existing flash cache designs. Since Kangaroo is implemented within CacheLib, Facebook’s open source caching engine, developers can use Kangaroo through CacheLib’s API to build [...] Read More... The post Kangaroo: A new flash cache optimized for tiny objects appeared first on Facebook Engineering. http://dlvr.it/SBLmkL

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 around the world, [...] Read More... The post Autonomous testing of services at scale appeared first on Facebook Engineering. http://dlvr.it/S9yYyZ

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 [...] Read More... The post Facebook engineers receive 2021 IEEE Computer Society Cybersecurity Award for static analysis tools appeared first on Facebook Engineering. http://dlvr.it/S9yYvY

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 [...] Read More... The post RTMP Go Away: Lossless reconnections for live streaming appeared first on Facebook Engineering. http://dlvr.it/S9tgNf

[...] Read More... The post Inside the Lab: Expanding connectivity by sea, land, and air appeared first on Facebook Engineering. http://dlvr.it/S96XgG

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 [...] Read More... The post More details about the October 4 outage appeared first on Facebook Engineering. http://dlvr.it/S8zNSJ

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 [...] Read More... The post Update about the October 4th outage appeared first on Facebook Engineering. http://dlvr.it/S8wnRz