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Big Data in Real-Time at Twitter
The document summarizes how Twitter handles and analyzes large amounts of real-time data, including tweets, timelines, social graphs, and search indices. It describes Twitter's original implementations using relational databases and the problems they encountered due to scale. It then discusses their current solutions, which involve partitioning the data across multiple servers, replicating and ind
Why Arel? « Magic Scaling Sprinkles
The upcoming version 3 of Ruby on Rails will feature a sexy new querying API from ActiveRecord. Here is an example: User.order('users.id DESC').limit(20).includes(:items) You can see that all queries are now chainable. This has two principal benefits: first, you can programmatically generate complex queries (based on user input or other data); and second, you can refactor your queries to eliminat
Cassandra nosql eu 2010
Cassandra is a NoSQL database designed for scalability and high availability without compromising performance. It distributes data across nodes and datacenters for redundancy and fault tolerance. Cassandra uses a decentralized architecture and dynamic replication to balance requests and allow incremental growth without reconfiguring the system. It provides tunable consistency options and supports
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GitHub - rails/arel: A Relational Algebra
