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Command-line tools can be faster than your Hadoop cluster
Adam Drake is an advisor to scale-up tech companies. He writes about ML/AI/data, leadership, and building tech teams.
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Call Me Maybe: MongoDB Stale Reads
Please note: our followup analysis of 3.4.0-rc3 revealed additional faults in MongoDB’s replication algorithms which could lead to the loss of acknowledged documents–even with Majority Write Concern, journaling, and fsynced writes.
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Michael Stonebraker wins Turing Award
Michael Stonebraker, an MIT researcher who has revolutionized the field of database management systems and founded multiple successful database companies, has won the Association for Computing Machinery's $1 million A.M. Turing Award, often referred to as “the Nobel Prize of computing.”
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Learn SQL Interactively on Khan Academy
There are millions of SQL users around the world. Who are these people, what is SQL, and what are they all using it for? Start learning S...
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RethinkDB 2.0 is now production ready
We’re proud to announce that after five years of development, RethinkDB is ready for production. Download RethinkDB 2.0 ( Yojimbo ) now!
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Call me maybe: Aerospike
Previously, on Jepsen, we reviewed Elasticsearch’s progress in addressing data-loss bugs during network partitions. Today, we’ll see Aerospike 3.5.4, an “ACID database”, react violently to a basic partition.
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Amazon Aurora Now Available
We announced Amazon Aurora last year at AWS re:Invent (see Amazon Aurora – New Cost-Effective MySQL-Compatible Database Engine for Amazon for more info). With storage replicated both within and across three Availability Zones, along with an update model driven by quorum writes, Amazon Aurora is designed to deliver…
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Finding bugs in SQLite, the easy way
SQLite is probably the most popular embedded database in use today; it is also known for being exceptionally well-tested and robust. In co...
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Top data mining algorithms in plain English
Today, I'm going to explain in plain English the top 10 most influential data mining algorithms as voted on by 3 separate panels in this survey paper. Once you know what they are, how they work, what they do and where you ... Read More
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Call Me Maybe: MariaDB Galera Cluster
Previously, on Jepsen, we saw Chronos fail to run jobs after a network partition . In this post, we’ll see MariaDB Galera Cluster allow transactions to read partially committed state.
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Comparison – R vs. Python: head to head data analysis
R vs Python — which is better for data analysis and data science? Compare the two languages side by side for an objective answer!
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Open-Source Loan-Level Analysis of Fannie and Freddie
[M]ortgages were acknowledged to be the most mathematically complex securities in the marketplace. The complexity arose entirely out of the option the homeowner has to prepay his loan; it was poetic …
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Call me maybe: Elasticsearch 1.5.0
Previously, on Jepsen , we demonstrated stale and dirty reads in MongoDB . In this post, we return to Elasticsearch, which loses data when the network fails, nodes pause, or processes crash.
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Parallel Sequential Scan is Committed to PostgreSQL 9.6
I previously suggested that we might be able to get parallel sequential scan committed to PostgreSQL 9.5. That did not happen. However, I...
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GraphQL: A data query language
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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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Practical Data Science in Python
Find, classify and remediate PII across your files, email, databases and cloud. Accurate AI-powered PII discovery – on-premise or SaaS.
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Announcing Google Cloud Bigtable
As businesses become increasingly data-centric, and with the coming age of the Internet of Things (IoT), enterprises and data-driven orga...