• HTML5, Fixing Bad Code, and the Fixed Mindset: What LinkedIn Engineers Are Writing about Today

    March 25, 2016

    Our publishing platform is a place where professionals can ask big questions and share their personal answers. Over the last two weeks, our engineers have been posting about what’s on their mind, like fixing bad code, the “fixed mindset,” HTML5, HR reform, and more. Read on to see our favorite pieces published on the platform. Vanquish the HR Bell Curve By Jens Pillgram-Larsen, Director of Engineering, Developer Tools Jens calls for reform in employee performance analysis,...

  • The LinkedIn Data Center 100G Transformation

    March 24, 2016

    LinkedIn’s continued growth will require us to grow our data centers to the mega scale in the next 3-5 years. Project Altair is our approach to creating a massively scalable data center fabric. The new LinkedIn data center being built in Oregon, known internally as LOR1, will be our first built for mega data center architecture that will enable us to step from the tens of thousands sized servers’ fleet to hundreds of thousands of servers fleet. The new network architecture in...

  • Inflow Dashboard

    InFlow - Making the LinkedIn network visible

    March 22, 2016

    To maintain the high network availability needed to serve all LinkedIn applications, we need to monitor and analyse both network infrastructure and network usage patterns. At LinkedIn, we traditionally use SNMP to monitor traffic patterns passing through different layers of networks. The monitored data is visualized using inGraphs and anomalies are sent as alerts to network engineers using our in-house alerting system called AutoAlerts. Other protocols like Netconf, vendor...

  • Project Altair

    March 21, 2016

    LinkedIn's infrastructure needs to seamlessly handle petabytes of data on a daily basis. Our data centers and infrastructure have grown by 34 percent on...

  • Rethinking Path Validation: Pt. 2

    March 16, 2016

    BGP, or the Border Gateway Protocol, is a widely-used protocol that allows very large networks, such as the Internet, to be able to scale. While BGP was...

  • Making Your Feed More Relevant – Part 2: Relevance models and features

    March 15, 2016

    This is a follow up post to Making Your Feed More Relevantthat provided introductory background on the feed system at LinkedIn. In this post we will dive...