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Links 1 through 10 of 3249 Óscar Andrés López's Bookmarks

The Ruby garbage collector has been flagged as the crux of Ruby performance and memory use for a long time. The default configuration is not suitable and optimal for most applications, and, hand-tuning the GC parameters is a slippery slope to navigate for most developers. TuneMyGC attempts to fix this by recommending optimal configuration parameters based on actual application usage.

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Tile38 is an open source (MIT licensed), in-memory geolocation data store, spatial index, and realtime geofence. It supports a variety of object types including lat/lon points, bounding boxes, XYZ tiles, Geohashes, and GeoJSON. It's written in Go, uses RESP (the same protocol as Redis) and is easy to run in HA master-slave mode.

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Running a large-scale web service, such as content hosting, necessarily requires load balancing — distributing clients uniformly across multiple servers such that none get overloaded. Further, it is desirable to find an allocation that does not change very much over time in a dynamic environment in which both clients and servers can be added or removed at any time. In other words, we need the allocation of clients to servers to be consistent over time. We developed a new efficient allocation algorithm for this problem with tight guarantees on the maximum load of each server.

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Graphite is an architecture for building monitoring systems. Each of its components can be mixed and matched separately, in particular at Tappsi we use: Grafana, Carbon, StatsD and at some point tried (and discarded) Riemann.

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More than 20 years after of SHA-1 was first introduced, we are announcing the first practical technique for generating a collision. A proof of concept is included, two different PDFs with the same hash! We must stop using SHA-1 immediately.

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As a managed service, Amazon RDS takes care of the scaling of your relational database so your database can keep up with the increasing demands of your application or applications.

In this blog post, we are going to take a look into how we can vertically and horizontally scale your RDS instance. You can scale vertically to address the growing demands of an application that uses a roughly equal number of reads and writes. Or you can scale horizontally for read-heavy applications.

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All of Vera's public slides.

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Squasher compresses old migrations in a Rails application.

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Hey, have you heard of the new AWS services: ContainerCache, ElastiCast and QR72? Of course not, I just made those up. But with 50 plus opaquely named services, we decided that enough was enough and that some plain english descriptions were needed.

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The book for APO1 has been released for free, at last! The most recent version is now available in gitbook: https://www.gitbook.com/book/universidad-de-los-andes/fundamentos-de-programacion/details

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