InfoQ Homepage Performance & Scalability Content on InfoQ
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Facebook Open Sources LogDevice - a Distributed Data Store for Log Storage
Facebook open sourced their internal distributed log storage project called LogDevice. It offers high write availability using replication, durable log storage and recovery from failure.
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How Coinbase Handled Scaling Challenges on Their Cryptocurrency Trading Platform
Coinbase, a digital currency exchange, faced scaling challenges on their platform during the 2017 cryptocurrency boom. The engineering team focused on upgrading and optimizing MongoDB, traffic segregation for hotspots to resolve them, and building capture and replay tools to prepare for future surges.
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Hyperledger Adds "Caliper" to Measure Blockchain Performance across Implementations
On March 19th, Hyperledger announced Caliper has been accepted by the Technical Steering Committee as a Hyperledger project. Hyperledger Caliper is a blockchain benchmark tool that allows projects to consistently track performance characteristics across different blockchain implementations.
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How Booking.com Uses Kubernetes for Machine Learning
Sahil Dua explained how Booking.com was able to scale machine learning (ML) models for recommending destinations and accommodation to their customers using Kubernetes, at the QCon London conference. In particular, he stressed how Kubernetes elasticity and resource starvation avoidance on containers helps them run computationally (and data) intensive, hard to parallelize, machine learning models.
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Handling Traffic Spikes from Global Events at Facebook Live
Facebook Live’s engineers talked about how they scale their systems to handle traffic from both predicted and unpredicted events. While the latter is handled by their global distributed architecture, the former involves careful advance planning and load testing.
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Smart Replies for Member Messages at LinkedIn
LinkedIn has launched a new natural language processing (NLP) recommendation engine which is used to provide members with smart-reply recommendations to messages. The models and infrastructure development process has been documented in detail in a recent blog post by the engineering team.
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GoTo Copenhagen 2017: How Shopify Powers Online Commerce
Simon Hørup, senior product engineering lead at Shopify, gave an overview of how Shopify is architectured to support large sales at GoTo Copenhagen 2017. This included their OpenResty configured NGINX instances, shop and pod isolation architecture, failover strategies and more.
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AWS Offers 4TB Memory Virtual Machines
AWS has now the largest cloud virtual machine in terms of memory, after launching the x1e.32xlarge, a new memory-optimized EC2 instance type. AWS customers can use this new type of instances in their production environments in order to handle the high memory requirements of software like SAP HANA and their in-memory databases.
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Personalized Notifications at Twitter
Gary Lam, staff engineer at Twitter, spoke about personalized notifications at QCon London 2017. This involved giving a high-level overview of their personalization and recommendations algorithms, and an explanation of how they work at scale despite the large volumes of data and bi-modal nature of Twitter.
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Real-Time Notifications at Twitter
Saurabh Pathak, engineering manager at Twitter, discussed the site's notification architecture at QCon London 2017. This included highlighting key challenges which are unique to Twitter, such as the bimodal nature of the social network, dealing with spikes, and the requirement to serve notifications in real time.
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Microsoft Has Moved the Windows Code Repo to Git
Microsoft has completed the move of their Windows codebase from Source Depot to Git using GVFS.
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Building a Scalable Minimum Viable Product
Scalability should be considered when developing a Minimum Viable Product (MVP). An MVP needs to be technically scalable and you need to have a plan on how to scale quickly when your MVP attracts many users and becomes successful. Knowing your possible performance bottlenecks and using common sense while developing your MVP will get you very far, says Erik Duindam, CTO at Unboxd.
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How GitHub Designed its New Load Balancer
GitHub has been at work for the last year to develop a new load balancer, the GitHub Load Balancer (GLB), aimed to be able to scale to billions of connections per day running on commodity hardware. GitHub engineers Joe Williams and Theo Julienne explain how GLB was designed.
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How and Why Etsy Moved to an API-First Architecture
At QCon New York 2016, Etsy software engineer Stefanie Schirmer told how her company successfully transitioned to an API-first architecture that supports multiple devices, addresses server-side performance problems, and was quickly adopted by development teams.
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Gil Tene: Understanding Hardware Transactional Memory
In his presentation "Understanding Hardware Transactional Memory" at QCon New York 2016, Gil Tene introduces hardware transactional memory (HTM). Whereas the concept of HTM is not new, it is now finally available in commodity hardware. The purpose of HTM is to be able to write to multiple addresses in memory in an atomical way so that there cannot be inconsistencies in cooperation other threads.