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Lessons learned scraping 100B product pages
Price Intelligence experience scraping over 100 billion product pages. Learn the best practices and demands of extracting product data from e-commerce stores.
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 4,225 posts.
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PostgreSQL Parallel Query v2
A recent Twitter poll asked What is your favorite upcoming feature of PostgreSQL V10? In this admittedly unscientific survey, "better para...
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Memory Management in Python
To speed-up memory operations and reduce fragmentation Python uses a special manager on top of the general-purpose allocator, called PyMalloc.
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How to Manage Connections Efficiently in Postgres, or Any Database
Hitting the limit for maximum allowed connections is a common operational problem in Postgres. Here we look at a few techniques for managing connections and making efficient use of those that are available.
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How to Become a Data Engineer in 2021
The demand for data engineers is growing rapidly. According to hired.com, the demand has increased by 45% in 2019. The median salary for Data Engineers in SF Bay Area is around $160k. So the question…
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Datomic Cloud
Announcing Datomic Cloud: a fully AWS-integrated database, up and running from the Marketplace in minutes, delivering the complete Datomic information model.
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RethinkDB 2.1 is out: high availability
Today we’re proud to announce RethinkDB 2.1 ( Forbidden Planet ). Download it now !
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File systems unfit as distributed storage back ends: lessons from Ceph evolution
File systems unfit as distributed storage backends: lessons from 10 years of Ceph evolution Aghayev et al., SOSP’19 Ten years of hard-won lessons packed into just 17 pages (13 if you don’t co…
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Text classification with Python 3.14's ZSTD module
Python 3.14 added Zstandard to stdlib; its incremental API finally makes classify-by-compression practical.
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FaunaDB 2.5.4
In 2012, Thomson, Diamond, Weng, et al. published Calvin: Fast Distributed Transactions for Partitioned Database Systems : a transactional protocol optimized for geographic replication. Each Calvin cluster is comprised of multiple replicas , where a replica is a collection of nodes which store a complete copy of the…
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Running 10M PostgreSQL Indexes in Production
How Heap runs 10 million postgreSQL indexes in production.
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All-in-one embedding model for interleaved text, images, and screenshots
TL;DR — We are excited to announce voyage-multimodal-3, a new state-of-the-art for multimodal embeddings and a big step forward towards seamless RAG and semantic search for documents rich with both…
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Millions of Tiny Databases
Millions of tiny databases, Brooker et al., NSDI’20 This paper is a real joy to read. It takes you through the thinking processes and engineering practices behind the design of a key part of …
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Postgres 9.2 will feature linear read scalability up to 64 cores
Remember when I blogged about linear read scalability out to 32 cores ? Well, the awesome Nate Boley provided me with access to his brand n...
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Materialize: A Streaming Data Warehouse
Materialize offers a streaming data warehouse for real-time analytics & interoperability with millisecond latency, revolutionizing data handling.
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Say no to Venn diagrams when explaining SQL joins (2016)
In recent times, there have been a couple of tremendously popular blog posts explaining JOINs using Venn Diagrams. After all, relational algebra and SQL are set oriented theories and languages, so …
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Perf Is Not Enough
Are database benchmarks still relevant ? Let's understand why it's a poor way to choose a database. | Reading time: 17 min read
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What SMART Stats Tell Us About Hard Drives
Have you ever wondered what your hard drive SMART errors actually mean? Find out what we look at to determine if a drive is about to fail.