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<div style="display: none; max-height: 0px; overflow: hidden;">Amazon S3 processes hundreds of millions of transactions per second, manages over 500 trillion objects, and operates across hundreds of exabytes </div>
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<h1><strong>TLDR Data <span id="date">2026-01-26</span></strong></h1>
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Finance is the OG data-driven industry... but it's often running on a data stack that's held together with duct tape and breaks at the smallest schema change.<p></p><p>With <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Faquata.ai%2Ftldr-data%3Futm_source=one-off%26utm_medium=display%26utm_campaign=PP-2026-TLDR-PLG-Ads%26utm_content=January-send/3/0100019bf9fcc64b-27dd1639-3a84-4746-9bd5-fad2c34f784a-000000/3Ytz3lBq22rolzTlgK3MQco-bODED55hu5-jhzeeWQo=441" rel="noreferrer noopener" target="_blank"><span>Aquata</span></a>, you get one <a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Faquata.ai%2Ftldr-data%3Futm_source=one-off%26utm_medium=display%26utm_campaign=PP-2026-TLDR-PLG-Ads%26utm_content=January-send/4/0100019bf9fcc64b-27dd1639-3a84-4746-9bd5-fad2c34f784a-000000/4TZLYE1bgCCDaevKskPtb692I65U105IG2YgG8EvWQs=441" rel="noreferrer noopener" target="_blank"><span>cloud-native data platform purpose-built for financial services</span></a>. It's used by asset managers & data teams at hedge funds, private markets, and capital markets to deliver faster insights - with total confidence in every figure.</p>
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Amazon S3 processes hundreds of millions of transactions per second, manages over 500 trillion objects, and operates across hundreds of exabytes with 11 nines of durability, achieved through auditor microservices and automated repair systems. Recent architectural advances include a near-total Rust rewrite for core pathways, rigorous formal methods for correctness, and rollout of new primitives like S3 Vectors supporting 20 trillion vectors per bucket with sub-100ms queries. S3's design emphasizes simplicity at scale, crash consistency, proactive defense against correlated failures, and engineering practices where increased scale enhances reliability and performance.
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Flipkart Ads processes over 1 million events per second with a horizontally scalable, stateful stream-processing architecture that prioritizes rapid spend enforcement while ensuring strict budget control. The system employs Flink-managed state for distributed deduplication and key-based idempotency, watermarking to manage temporal skew due to delayed mobile events, and a Lambda architecture that separates sub-second enforcement from batch reconciliation for financial accuracy.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fhackernoon.com%2Fbenchmarking-1b-vectors-with-low-latency-and-high-throughput%3Futm_source=tldrdata/1/0100019bf9fcc64b-27dd1639-3a84-4746-9bd5-fad2c34f784a-000000/e75Sus_7cEBMmYawKnaSqcgRbLSBfKV33iCqMZHzics=441">
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<strong>Benchmarking 1B Vectors with Low Latency and High Throughput (5 minute read)</strong>
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ScyllaDB Vector Search achieves industry-leading p99 latencies as low as 1.7 ms and throughput up to 252,000 QPS on billion-scale datasets, demonstrated using the yandex-deep_1b benchmark with 96-dimensional vectors. The architecture co-locates structured and vector data, supporting hybrid queries. Now generally available, upcoming enhancements include native filtering, quantization, and optimized hybrid retrieval.
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<strong>Feast Joins the PyTorch Ecosystem: Bridging Feature Stores and Deep Learning (5 minute read)</strong>
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Feast, an open-source feature store, has joined the PyTorch Ecosystem, taming the training-serving skew by ensuring models receive identical feature transformations in both development and production. With unified APIs, point-in-time joins, support for Spark/Snowflake/Flink, OpenTelemetry observability, and RBAC-based governance, Feast empowers teams to maintain data consistency and lineage for large-scale AI deployments.
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<strong>Sirius (GitHub Repo)</strong>
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Sirius is a GPU-native SQL engine that plugs into existing query engines (currently DuckDB, with Doris “coming soon”) via Substrait, so teams can offload execution to GPUs without rewriting SQL or rebuilding the whole platform. Built on NVIDIA CUDA-X, it reports ~10x TPC-H (on SF=100) speedup at similar on-demand cost. Today, it accelerates a limited operator/type set (joins, group-bys, etc.; common scalar types) and falls back to CPU for unsupported features.
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<div style="text-align: center;"><strong><h1>Miscellaneous</h1></strong></div>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fblobs.duckdb.org%2Fdata-day-texas-2026-joy-of-sql-slides.txt%3Futm_source=tldrdata/1/0100019bf9fcc64b-27dd1639-3a84-4746-9bd5-fad2c34f784a-000000/ou_C9QZaZfFshx16VQOgvt9QczIbo8PJNRO2xCWl0gY=441">
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<strong>The Joy of SQL - If Properly Implemented (18 minute read)</strong>
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SQL's frustrations mostly come from poor vendor implementations rather than the language itself. DuckDB shows how better defaults, simpler syntax, and improved tooling can make SQL feel enjoyable and productive.
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<strong>Optimizing Data Transfer in Distributed AI/ML Training Workloads (15 minute read)</strong>
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Profiling GPU-to-GPU data transfer in distributed training reveals stark differences in performance between PCIe and NVLink interconnects. NVLink impacts throughput by only 8% versus over 6x slowdown for PCIe. Techniques like gradient compression, optimized memory usage, and parallelized reduction drive substantial performance and cost gains, illustrating the value of regular profiling with NVIDIA Nsight™ Systems for all AI/ML teams.
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<h1><strong>Quick Links</strong></h1>
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fblog.tansu.io%2Farticles%2Fbroker-aws-free-tier%3Futm_source=tldrdata/1/0100019bf9fcc64b-27dd1639-3a84-4746-9bd5-fad2c34f784a-000000/lJ6j04CPOyWm2CPwQR-5K0YG4Yf0reRv0Np4CQ2wb-E=441">
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<strong>Small Kafka: Tansu + SQLite on a free t3.micro (8 minute read)</strong>
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You can run a Kafka-compatible Tansu broker cheaply on AWS free tier using SQLite.
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<a href="https://tracking.tldrnewsletter.com/CL0/https:%2F%2Fwww.anthropic.com%2Fresearch%2Fanthropic-economic-index-january-2026-report%3Futm_source=tldrdata/1/0100019bf9fcc64b-27dd1639-3a84-4746-9bd5-fad2c34f784a-000000/qcbFUYeaqMlL9Hb2Ka_QncmuA0Z2DlpAa7z72Ap1_oQ=441">
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<strong>Anthropic Economic Index report: economic primitives (43 minute read)</strong>
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Anthropic's latest Economic Index reveals that Claude AI usage is increasingly concentrated in high-value software, administrative, and educational tasks, with enterprise API requests now 74% work-related and 52% focused on coding/data workflows.
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