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Fernando Laudares Camargos: An Overview of Sharding in PostgreSQL and How it...
Feed: Planet PostgreSQL. PREVIOUS POST A couple of weeks ago I presented at Percona University São Paulo about the new features in PostgreSQL that allow the deployment of simple shards. I’ve tried to...
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MySQL Support Engineer’s Chronicles, Issue #10
Feed: Planet MySQL; Author: Valeriy Kravchuk; As promised, I am trying to write one blog post in this series per week. So, even though writing about InnoDB row formats took a lot of time and efforts...
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What single step does with relationship
Feed: R-bloggers. Author: mrtnj. We had a journal club about the single step GBLUP method for genomic evaluation a few weeks ago. In this post, we’ll make a few graphs of how the single step method...
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Easily query AWS service logs using Amazon Athena
Feed: AWS Big Data Blog. Many organizations use Amazon Simple Storage Service (Amazon S3) as a primary storage destination for a wide variety of logs including AWS service logs. One of the benefits of...
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Trigger cross-region replication of pre-existing objects using Amazon S3...
Feed: AWS Big Data Blog. In Amazon Simple Storage Service (Amazon S3), you can use cross-region replication (CRR) to copy objects automatically and asynchronously across buckets in different AWS...
View ArticleHow to plan for MySQL 8.0 upgrade ?
Feed: Planet MySQL; Author: MinervaDB; Recently one of our customers in Fintech. business (among the largest one in the Asia) wanted to upgrade from MySQL 5.7 to MySQL. 8.0. and they approached us for...
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Indexes bad practices
Feed: Planet MySQL; Author: Federico Razzoli; The chromatic scale is an ordered data structure Before proceeding, I recommend reading Primary Key in InnoDB: how they work and best practices. Here we...
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SQL ALTER TABLE Statement Example | How To Alter Table in SQL Tutorial
Feed: Planet MySQL; Author: Krunal Lathiya; SQL ALTER TABLE Statement Example | How To Alter Table in SQL Tutorial is today’s topic. SQL ALTER TABLE statement is used to add, modify, or delete columns...
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Testing the CP Subsystem with Jepsen
Feed: Blog – Hazelcast. Author: Ensar Basri Kahveci. At Hazelcast we take reliability very seriously. With the new CP Subsystem module, Hazelcast has become the first and only IMDG that offers a...
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How to export an Amazon DynamoDB table to Amazon S3 using AWS Step Functions...
Feed: AWS Big Data Blog. In typical AWS fashion, not a week had gone by after I published How Goodreads offloads Amazon DynamoDB tables to Amazon S3 and queries them using Amazon Athena on the AWS Big...
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How to Make Machine Learning Models for Beginners
Feed: Featured Blog Posts – Data Science Central. Author: Divya Singh. Introduction Data science is one of the hottest topics in the 21st century because we are generating data at a rate which is much...
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Why It’s Time to Rethink Data Modeling
Feed: Blog Post – Corporate – DataStax. Author: Louise Westoby, Senior Director, Product Marketing. Data modeling provides a means of planning and blueprinting the complex relationship between an...
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riddles on Egyptian fractions and Bernoulli factories
Feed: R-bloggers. Author: xi’an. Two fairy different riddles on the weekend Riddler. The first one is (in fine) about Egyptian fractions: I understand the first one as Find the Egyptian fraction...
View ArticleAnnouncing EMR Release 5.24.0: With performance improvements in Spark, new...
Feed: Recent Announcements. You can now use Apache Spark 2.4.2, Apache Flink 1.8.0, Presto 0.219, Hue 4.4.0, JupyterHub 0.9.6, Apache Livy 0.6.0, and Apache MXNet 1.4.0 on Amazon EMR release 5.24.0....
View ArticleLuca Ferrari: A recursive CTE to get information about partitions
Feed: Planet PostgreSQL. I’m used to partitioning, it allows me to quickly and precisely split data across different tables. PostgreSQL 10 introduced the native partitioning, and since that I’m using...
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Building Edge Solutions on OpenWrt with AWS IoT Greengrass
Feed: The Internet of Things on AWS – Official Blog. Author: Richard Elberger. Hardware and operating systems for edge devices are built and delivered to customers in a wide range of form factors, such...
View ArticleShinguz: Do not underestimate performance impacts of swapping on NUMA...
Feed: Planet MySQL; Author: FromDual; If your MariaDB or MySQL database system is swapping it can have a significant impact on your database query performance! Further it can also slow down your...
View ArticlePython Software for Clustering
Feed: Featured Blog Posts – Data Science Central. Author: Faramarz Azadegan. In an earlier description of clustering algorithms we described an algorithm by which locally optimum partitions and center...
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Performance updates to Apache Spark in Amazon EMR 5.24 – Up to 13x better...
Feed: AWS Big Data Blog. Amazon EMR release 5.24.0 includes several optimizations in Spark that improve query performance. To evaluate the performance improvements, we used TPC-DS benchmark queries...
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Rolling Upgrade Hazelcast IMDG on Kubernetes
Feed: Blog – Hazelcast. Author: Rafal Leszko. Hazelcast IMDG is tightly integrated into the Kubernetes ecosystem thanks to the Hazelcast Kubernetes plugin. In previous blog posts, we shared how to use...
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