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Facebook Code Search Android iOS Web Backend Hardware 2009年4月30日 Infra · Data · Storage · Photos Peter Vajgel The Photos application is one of Facebook’s most popular features. Up to date, users have uploaded over 15 billion photos which makes Facebook the biggest photo sharing website. For each uploaded photo, Facebook generates and stores four images of different sizes, which translates to a total of 60 billion images and 1.5PB of storage. The current growth rate is 220 million new photos per week, which translates to 25TB of additional storage consumed weekly. At the peak there are 550,000 images served per second. These numbers pose a significant challenge for the Facebook photo storage infrastructure. The old photo infrastructure consisted of several tiers: Upload tier receives users’ photo uploads, scales the original images and saves them on the NFS storage tier. Photo serving t...
Facebook Code Blog Open Source Events Videos Search Mobile Web Data Infra Culture October 29, 2014 Infra · Security · Open Source Mike Arpaia Maintaining real-time insight into the current state of your infrastructure is important. At Facebook, we've been working on a framework called osquery which attempts to approach the concept of low-level operating system monitoring a little differently. Osquery exposes an operating system as a high-performance relational database. This design allows you to write SQL-based queries efficiently and easily to explore operating systems. With osquery, SQL tables represent the current state of operating system attributes, such as: running processes loaded kernel modules open network connections SQL tables are implemented via an easily extendable API. Several tables already exist and more are being written. To best understand the expressiveness that is a...
Code Blog Open Source Events Videos Mobile Web Data Infra Culture 4 hours ago Infra · Security · Open Source Mike Arpaia Maintaining real-time insight into the current state of your infrastructure is important. At Facebook, we've been working on a framework called osquery which attempts to approach the concept of low-level operating system monitoring a little differently. Osquery exposes an operating system as a high-performance relational database. This design allows you to write SQL-based queries efficiently and easily to explore operating systems. With osquery, SQL tables represent the current state of operating system attributes, such as: running processes loaded kernel modules open network connections SQL tables are implemented via an easily extendable API. Several tables already exist and more are being written. To best understand the expressiveness that is afforded to you by osq...
Facebook Engineering Blog Open Source Events Videos Publications Mobile Web Data Infra Culture Engineering Blog Yuval Bachar Adam Simpkins Posted 7 hours ago Infra We’re big believers in the value of disaggregation – of breaking down traditional data center technologies into their core components so we can build new systems that are more flexible, more scalable, and more efficient. This approach has guided Facebook from the beginning, as we’ve grown and expanded our infrastructure to connect more than 1.28 billion people around the world. Over the last three years, we’ve been working within the Open Compute Project (OCP) to apply this principle to open designs for racks, servers, storage boxes, and motherboards. And last year, we kicked off a new networking project within OCP , with a goal of developing designs for OS-agnostic top-of-rack (TOR) switches. This was the first step toward ...