InfoQ - Architecture & Design

Pinterest Engineers Eliminate CPU Zombies to Resolve Production Bottlenecks

Mark Silvester — Thu, 14 May 2026 10:00:00 GMT

Pinterest identified and resolved CPU starvation issues that affected machine learning training jobs on its Kubernetes-based platform, PinCompute. The engineers traced the problem to an unused Amazon ECS agent, which caused memory cgroup leaks. By disabling the agent, they stabilised performance. This case illustrates the importance of understanding system defaults for effective troubleshooting.

By Mark Silvester

Airbnb Implements Context-Aware Identity Model to Support Privacy-First Social Features

Leela Kumili — Wed, 13 May 2026 14:46:00 GMT

Airbnb has redesigned its identity system to support privacy-first social features in Experiences. The platform introduces context-specific profiles that separate global user identity from externally visible profiles, preventing cross-context linkage. The migration leveraged automated auditing, manual validation, and AI-assisted refactoring to enforce correct identity usage across services.

By Leela Kumili

Article: The Mathematics of Backlogs: Capacity Planning for Queue Recovery

Rajesh Kumar Pandey — Wed, 13 May 2026 09:00:00 GMT

Backlogs in distributed systems are arithmetic problems, not mysteries. This article provides practical formulas for calculating backlog drain time, sizing consumer headroom, and setting auto-scaling triggers. It covers key failure modes — retry amplification, metastable states, and cascading pipeline bottlenecks — plus when to shed load instead of draining.

By Rajesh Kumar Pandey

AWS WorkSpaces Now Lets AI Agents Operate Legacy Desktop Applications Without APIs

Steef-Jan Wiggers — Wed, 13 May 2026 07:31:00 GMT

AWS announced that Amazon WorkSpaces can now serve as managed virtual desktops for AI agents in public preview. Agents authenticate through IAM and operate legacy applications via computer vision and input simulation without APIs. Reflex benchmarks show vision agents consume 45x more tokens than API agents.

By Steef-Jan Wiggers

Netflix Serves 84% of Query Results from Cache with Interval-Aware Caching in Apache Druid

Leela Kumili — Mon, 11 May 2026 14:36:00 GMT

Netflix improves Apache Druid performance with interval aware caching, serving 84% of analytics results from cache and reducing query load by 33%. The system decomposes rolling window queries into reusable time segments, enabling partial cache reuse and recomputation only for recent data. At scale, it reduces scan volume, improves P90 latency, and optimizes real time analytics workloads.

By Leela Kumili

Presentation: Evolution of a Backend for a Streaming Application

Daniele Frasca — Mon, 11 May 2026 11:45:00 GMT

Daniele Frasca explains the architectural evolution of Joyn, a German streaming giant. He discusses moving from fragile single-node setups to resilient serverless architectures using AWS. He shares insights on the Hub and Spoke pattern for data consistency, cell-based isolation to reduce blast radius, and cost-optimization strategies for achieving affordable multi-region active-active setups.

By Daniele Frasca

Netflix Introduces ‘Model Lifecycle Graph’ to Scale Enterprise Machine Learning

Matt Foster — Mon, 11 May 2026 07:30:00 GMT

Netflix has developed a graph-based architecture for managing machine learning systems, called the Model Lifecycle Graph. This system maps interconnections between datasets, models, features, and workflows, addressing challenges in scaling ML operations. It enhances discoverability, governance, and component reuse while supporting a self-service approach for engineers and data scientists.

By Matt Foster

Java News Roundup: GraalVM, Spring AI, JobRunr, GlassFish, Grails, Groovy, Quarkus Agent MCP

Michael Redlich — Mon, 11 May 2026 02:30:00 GMT

This week's Java roundup for May 4th, 2026, features news highlighting: OpenJDK JEPs targeted for JDK 27; the sixth milestone release of Spring AI 2.0; the first milestone release of Grails 8.0; the first alpha release of Groovy 6.0; a point release of JobRunr; maintenance releases of GlassFish, TomEE and Tomcat; an accelerated release train for GraalVM; and a new Quarkus Agent MCP server.

By Michael Redlich

AWS Improves Aurora Serverless: 45% Faster Ramp-Up, 30% Higher Throughput

Renato Losio — Sat, 09 May 2026 06:56:00 GMT

AWS has recently announced that WorkMail will be discontinued and that App Runner will stop accepting new customers and move into maintenance mode. Several other less popular services and features are also entering maintenance or sunset phases, triggering concern and debate across the AWS community.

By Renato Losio

How GitHub Is Securing Agentic Workflows in Modern CI CD Systems

Leela Kumili — Fri, 08 May 2026 14:38:00 GMT

GitHub detailed a defense-in-depth security architecture for agentic workflows in CI/CD pipelines, focusing on isolation, constrained execution, and auditability. The design aims to safely integrate autonomous AI agents while mitigating risks like prompt injection, privilege escalation, and unintended actions, using sandboxed environments, restricted permissions, and full execution traceability.

By Leela Kumili

OpenAI Introduces Websocket-Based Execution Mode to Reduce Latency in Agentic Workflows

Leela Kumili — Thu, 07 May 2026 14:48:00 GMT

OpenAI introduces a WebSocket-based execution mode for its Responses API to improve agentic workflow performance in coding agents and real-time AI systems. The update reduces latency by up to 40 percent by replacing HTTP request-response cycles with persistent connections, improving streaming, tool execution, and multi-step orchestration in production-scale AI systems.

By Leela Kumili

Google Announces GKE Agent Sandbox and Hypercluster at Next '26, Positioning Kubernetes as AI Agent

Steef-Jan Wiggers — Thu, 07 May 2026 10:06:00 GMT

Google announced GKE Agent Sandbox and hypercluster at Cloud Next '26. Agent Sandbox uses gVisor kernel isolation for secure agent code execution at 300 sandboxes per second, built as an open-source Kubernetes SIG Apps subproject. It is currently the only native agent sandbox among the three major hyperscalers. Hypercluster manages a million chips from a single control plane.

By Steef-Jan Wiggers

LinkedIn Consolidates Hiring Data Pipelines to Power AI Driven Talent Systems

Leela Kumili — Wed, 06 May 2026 14:15:00 GMT

LinkedIn introduced a unified integrations platform to standardize and reconcile hiring data across systems. The platform reduces onboarding time by 72%, improves data consistency and completeness, and enables scalable AI-driven hiring features through standardized schemas, orchestration workflows, and centralized data processing.

By Leela Kumili

Attacker Bought 30 WordPress Plugins on Flippa and Backdoored All of Them

Steef-Jan Wiggers — Wed, 06 May 2026 10:00:00 GMT

An attacker purchased 30+ WordPress plugins on Flippa for six figures, planted a PHP deserialization backdoor in the first commit, and waited eight months before activating it across 400,000 installations. The attack used Ethereum smart contracts to resolve C2. WordPress.org has no mechanism for reviewing plugin ownership transfers, a gap that npm and PyPI addressed years ago.

By Steef-Jan Wiggers

Inside Claude Code Auto Mode: Anthropic’s Autonomous Coding System with Human Approval Gates

Leela Kumili — Tue, 05 May 2026 14:38:00 GMT

Anthropic has introduced auto mode in Claude Code, enabling multi-step software development workflows with reduced manual intervention. The feature combines automated execution with layered safety mechanisms, including input filtering, action evaluation, and two-stage classification, while maintaining human approval checkpoints for sensitive operations.

By Leela Kumili