InfoQ Homepage migration Content on InfoQ
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Expedia Migrates a Massive Cassandra Cluster to ScyllaDB with Zero Downtime
Expedia Group, a global travel technology company that manages over 70 TB of data, disclosed its process of migrating Cassandra clusters with over 50 tables and thousands of connections to ScyllaDB. The primary motivation for this migration is to leverage ScyllaDB's built-in Change Data Capture (CDC) capabilities for improved data consistency and reduced operational complexity.
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Planning, Automation and Monorepo: How Monzo Does Code Migrations Across 2800 Microservices
Monzo products are supported by an extensive microservice-based platform of over 2800 services. The company relies on planning and heavy automation to drive code migrations at scale and leverages config service to support gradual roll forwards and quick rollbacks in case of issues. Migrations are managed by a central team rather than service owner teams to avoid delays and inconsistencies.
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KubeCon EU: Mercedes-Benz’s Migration From Pod Security Policies to Validation Admission Policies
During KubeCon EU the Mercedes Benz team presented their migration journey from Pod Security Policies to Validation Admission Policies to secure their 1000+ Kubernetes clusters. The solution was chosen in favour of Kyverno due to its improved performance.
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QCon London: gRPC Migration Automation at LinkedIn
At QCon London 2024, Karthik Ramgopal and Min Chen described how AI helped LinkedIn change the remote procedure calls (RPC) protocol for 50,000 production endpoints from Rest.li to Google's gRPC. A planned 2-3 year manual migration turned into an AI-supported migration lasting 2-3 quarters. It changed 20 million lines of code across 2000 services – without business interruption.
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Patcher, a Tool to Keep Updating Infrastructure as a Code
Gruntwork announces the beta availability of Patcher, a tool to automatically keep updating the infrastructure as a code, even with breaking changes.
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Dropbox Makes the Android App Faster and More Reliable: Swaps C++ Code for a Native Approach
Dropbox recently published how it made the camera upload process for Android faster and more reliable. Dropbox engineers removed shared Android and iOS C++ code and replaced it with a platform-native Kotlin implementation. The engineers are pleased with the decision to rewrite the process, stating that error rates went down and upload performance greatly improved.
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Scaling Video Quality Measurements at Netflix with Cosmos
Netflix relies heavily on measuring perceptual video quality for different business purposes. As metrics evolve and become part of more workflows, their measurement tool needs to scale too. Netflix recently described how a new video quality measurement workflow was implemented using Cosmos microservices to foster innovation in quality metrics, with good scalability and loose data coupling.
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End of Year Learnings from Minecraft’s Migration to JDK 16 and Q&A with the Mojang Team
In an effort to obtain a smoother transition towards JDK 17, Minecraft decided to upgrade to JDK 16 first just months before Java's LTS release in September 2021. The changes point towards possible performance gains just by running JDK 17 out-of-the-box. InfoQ reached out to the Mojang team with further questions on their experience running JDK 16 in production.
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Sentry Migrates Its Frontend to Typescript - Lessons Learned
Mark Story and Priscila Oliveira recently shared lessons learned when converting Sentry’s frontend codebase (one-year effort, 100,000 lines of code) to TypeScript. The pair described a gradual conversion process in which TypeScript progressively replaced JavaScript, types were continuously refined as new TypeScript language features were released, and complex types were built incrementally.
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Migrating a Monolith towards Microservices with the Strangler Fig Pattern
ScholarPack has migrated away from its monolith backend using a Strangler Fig pattern. They applied incremental development and continuous delivery to target customers’ needs, in the meanwhile strangling their monolith.
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Bloomberg Engineering Share Experiences of Adopting TypeScript across a Large Codebase
Rob Palmer, JavaScript infrastructure and tooling lead at Bloomberg, recently shared a few learning points and insights from the adoption of TypeScript at scale at Bloomberg. While some learning points are specific to Bloomberg’s custom runtime, others may be valuable across any large codebase switching to TypeScript.
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Airbnb Releases Tool to Convert Large Codebases to Typescript
The Airbnb engineering team recently released ts-migrate, a tool to help migrate JavaScript code to TypeScript. While the resulting TypeScript code will compile, manual revision of a few annotations (e.g. any) will still be necessary. An automated process may however be more productive than starting from scratch. The Airbnb team reports converting projects with over 50,000 lines of code in a day.
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Instana Performance Provider Adds vSphere Support
Microservice application performance management provider, Instana, has released new capabilities for monitoring the VMware vSphere Suite, as well as applications running on vSphere infrastructure. Instana correlates infrastructure and application performance metrics and the latest release includes the ability to discover, map and monitor components running on VMware’s vSphere suite.
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Airbnb's Migration from Monolith to Services
Jessica Tai spoke at QCon San Francisco 2018 about Airbnb's move from a Ruby on Rails monolith architecture to a service-oriented architecture. The company has expanded from 200 engineers in 2015 to 1,000 and has less downtime due to rollbacks and has improved performance with page load times up to 10x faster.
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The Guardian’s Migration from MongoDB to PostgreSQL on Amazon RDS
The Guardian migrated their CMS’s datastore in 2018 from a self-managed MongoDB cluster to PostgreSQL on Amazon RDS for a fully managed solution. The team did an API-based migration without any downtime.