The Iceberg REST Catalog is Not an Address Book
Treating the Iceberg REST catalog as a passive lookup service causes optimistic concurrency rollback storms in multi-engine lakehouses.
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Field notes on data engineering
Perspective, engineering write-ups, and field notes from the Aeolus team on data pipelines, AI-ready data foundations, and the production DataOps discipline enterprise AI runs on.
All posts
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The Hidden Debt of Conversational Pipeline Authoring
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The Embedding Model Upgrade Trap
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The Vector Database Sprawl Trap
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The Agentic CDC Torn State Trap: Why Millisecond Freshness Breaks Autonomous AI Context
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Passive Alerting Fails in AI Stacks: Why Data Pipelines Need Automated Circuit Breakers
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Stateless Stream Processing: Decoupling Compute and State with Table-First Storage
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The Streaming State Tax: Why Log-First Architecture Forces Database Sprawl
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The Cluster Tax: Why Right-Sized Analytics Beats Distributed Sprawl
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The Embedded Lakehouse Concurrency Trap: Managing Scaling Limits in In-Process Analytics
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The Parquet Sampling Bottleneck in Multimodal AI
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The Clusterless Analytics Paradigm: Replacing Distributed Friction with In-Process Engines
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Making Every AI Agent Incident Reconstructable
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AI Readiness Is Capacity Recovery: Measuring Data Engineering Buyback
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Inference Debt Revealed at Scale
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When Bad Data Sounds Confident
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Batch and Streaming: From Architecture to Configuration
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The One Layer of the 2026 Data Stack You Can't Buy
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The Real Switching Cost in Modern Data Platforms
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The Data Engineering Bottleneck in Enterprise AI
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Why AI-Assisted Developers Feel Faster Than They Are
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Why Modernization Should Be a Lock, Not a Leap
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The Origin of the "80% Unstructured Data" Statistic
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Metrics Are Build Artifacts, Not Raw Observations