InfoQ Homepage Distributed Cache Content on InfoQ
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Olson and Söderqvist Discuss Valkey’s Evolution and Future Past Caching Use Cases at OSS EU
Valkey is a growing project, launched as a fork of Redis over two years ago, supported by twelve maintainers and nine committee members from various companies. Recent developments include enhanced throughput, improved cluster functionality, and plans for features like synchronous replication and tiered storage. The project also emphasises security and release efficiency through automation.
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Agoda Replaces 72-Shard SQL Server Price Cache with DragonflyDB
Agoda migrated its 1.5 TB hotel Price Cache from 72 SQL Server shards to DragonflyDB to handle growing read and write volumes. The migration used staged dual reads, parity validation, gradual traffic shifting, and decentralized failover detection. Agoda reports an approximately eightfold reduction in P99 read latency, with two DragonflyDB clusters providing high availability.
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DoorDash Uses Envoy and Valkey for a 1.5M RPS Proxy Cache with 99.99999% Availability
DoorDash has developed Entity Cache, a transparent proxy caching platform built on Envoy and Valkey to reduce redundant service-to-service requests across its microservices architecture. Operating within DoorDash’s service mesh, the platform serves over 1.5M requests per second with 99.99999% availability through caching, event-driven invalidation, failure handling, and performance optimizations.
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Cloudflare and ETH Zurich Outline Approaches for AI-Driven Cache Optimization
Cloudflare and ETH Zurich highlight how AI-driven crawler traffic challenges traditional caching in CDNs and databases. They propose AI-aware strategies including separate cache tiers, adaptive algorithms, and pay-per-crawl models to balance performance for human users and AI services while maintaining cache efficiency and system stability.
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QCon London 2026: Shielding the Core: Architecting Resilience with Multi-Layer Defenses
Anderson Parra, staff software engineer at SeatGeek, presented “Shielding the Core: Architecting Resilience with Multi-Layer Defenses” at QCon London 2026. Parra discussed strategies on how to handle significant traffic spikes in systems that can overwhelm an even well-designed infrastructure.
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Karrot Improves Conversion Rates by 70% with New Scalable Feature Platform on AWS
Karrot replaced its legacy recommendation system with a scalable architecture that leverages various AWS services. The company sought to address challenges related to tight coupling, limited scalability, and poor reliability in its previous solution, opting instead for a distributed, event-driven architecture built on top of scalable cloud services.
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Valkey 9.0 Introduces Multi-Database Clustering, Atomic Slot Migration, and Major Performance Gains
The Linux Foundation has announced the general availability of Valkey 9.0, the open-source in-memory storage solution developed as a successor to Redis. The latest major version introduces atomic slot migrations, hash field expiration, and full support for numbered databases in cluster mode, enabling scaling to 2,000 nodes and achieving over 1 billion requests per second.
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Cloudflare Rearchitects Workers KV Following GCP Outage, Achieves 40x Performance Gain
Cloudflare has recently redesigned Workers KV with a hybrid storage architecture that automatically routes objects between distributed databases and object storage based on size characteristics, while operating dual storage backends. This change improved the p99 read latencies from 200ms to under 5ms for their global key-value store while handling hundreds of billions of key-value pairs.
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Redis Switches to SSPLv1: Restrictive License Sparks Fork by Former Maintainers
Redis has recently announced a change in their license by transitioning from the open-source BSD to the more restrictive Server Side Public License (SSPLv1). The move has promptly led to a fork initiated by former maintainers and reignited discussions surrounding the sustainability of open-source initiatives.
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Uber's CacheFront: Powering 40M Reads per Second with Significantly Reduced Latency
Uber developed an innovative caching solution, CacheFront, for its in-house distributed database, Docstore. CacheFront enables over 40M reads per second from online storage and achieves substantial performance improvements, including a 75% reduction in P75 latency and over 67% reduction in P99.9 latency, demonstrating its effectiveness in enhancing system efficiency and scalability.
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Cloudflare Hyperdrive: Access PostgreSQL Databases Globally
During the recent "Birthday Week 2023", Cloudflare announced the open beta of Hyperdrive, a new service that uses Cloudflare global network to speed up queries to existing databases. The service currently supports PostgreSQL-compatible databases, with support for MySQL expected soon.
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New AWS .NET Distributed Cache Provider for DynamoDB in Preview
Recently AWS announced the preview release of the AWS .NET Distributed Cache Provider for DynamoDB. This library enables Amazon DynamoDB to be used as the storage for ASP.NET Core’s distributed cache framework.
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How LinkedIn Serves over 4.8 Million Member Profiles per Second
LinkedIn introduced Couchbase as a centralized caching tier for scaling member profile reads to handle increasing traffic that has outgrown their existing database cluster. The new solution achieved over 99% hit rate, helped reduce tail latencies by more than 60% and costs by 10% annually.
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Cloudflare Releases Cache Reserve in Open Beta
Recently, Cloudflare announced the open beta of Cache Reserve, which provides a way to serve all static content from Cloudflare’s global cache persistently. It is a large, persistent data store implemented on top of R2.
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Momento Announces Serverless Cache Service
The startup Momento recently emerged from stealth mode launching a serverless cache. The new service is generally available and offers a highly available cache with an on-demand pricing model based on data transferred in/out.