SRE Articles

  • diagram-of-alert-correlation-high-level-architecture

    Spike detection in Alert Correlation

    December 22, 2021

    Introduction LinkedIn’s stack consists of thousands of different microservices and the associated complex dependencies among them. When a production outage happens due to an issue with misbehaving services, finding the exact service responsible for the outage is challenging and time-consuming. Although each service has multiple alerts configured in a distributed...

  • host-wise-latency-to-detect-outliers-and-single-node-failures-this-graph-shows-four-outliers-from-three-hosts

    Rethinking site capacity projections with Capacity Analyzer

    March 16, 2021

    While site outages are inevitable, it’s our job to minimize both the duration of outages and the likelihood for an outage to occur. One of our preemptive measures is in the way we determine overall site capacity and health on an everyday basis, in that we load-test in production. There’s an elegant system to bucket and route members to specific data centers from...

  • school-of-sre-logo-showing-a-gear-wearing-a-graduation-cap

    Open source update: School of SRE

    February 3, 2021

    Co-authors: Akbar KM and Kalyanasundaram Somasundaram Site up and secure is a fundamental element of how we operate, and site reliability engineers (SREs) play a critical role in fulfilling that responsibility. Talent has always been the number one operating priority, and over the last few years, we’ve been running multiple programs to identify, hire, and...

  • fixing-linux-file-system-performance-regressions

    Fixing Linux filesystem performance regressions

    October 16, 2020

    As companies grow, adapt, morph, and mature, one item remains the same: the need for reinvention. Technical infrastructure is no...

  • The impact of slow NFS on data systems

    June 23, 2020

    Espresso is LinkedIn's defacto NoSQL database solution. It is an online, distributed, fault-tolerant database that powers most of...

  • Azure-Front-Door-map

    Scaling LinkedIn’s Edge with Azure Front Door

    June 16, 2020

    Co-authors: Viranch Mehta, Jon Sorenson, Samir Jafferali As LinkedIn has grown to more than 690 million members, we’ve expanded our...