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Presto – Facebook's Exabyte-Scale Query Engine

mectors — Tue, 18 Jun 2013 06:30:00 +0000

Presto is Facebook´s answer to Cloudera´s Impala, Hortonworks´ Stinger and Google´s Dremel. Presto is an ANSI-SQL compatible real-time data warehouse query engine so existing data tools should be working with it unlike Hive which needed special integration. Preview Text: Presto is an ANSI-SQL compatible real-time data warehouse...

Lightning Talk: Getting Started with Testing and TDD

egregory — Tue, 18 Jun 2013 05:50:00 +0000

Andy Parker gives a quick-but-dense talk at Puppet Camp Austin on the fundamentals of testing and test-driven development: Preview Text: Andy Parker gives a quick-but-dense talk at Puppet Camp Austin on the fundamentals of testing and test-driven development. Legacy Sponsored: ...

Get DZone's Definitive Guide to Cloud Providers

egenesky — Mon, 17 Jun 2013 16:05:53 +0000

Today, DZone Research released its Definitive Guide to Cloud Providers, which you can pick up for free here. This is DZone's largest research project to date, and it is designed to help you choose the best PaaS or IaaS solution for your specific needs. Specifically, our guide will help you answer these questions: Preview Text: ...

Cross-Reference: Commit Message and Issue Tracker

ariya — Mon, 17 Jun 2013 05:10:00 +0000

Maintainable software projects usually take the issue tracker seriously. More often, it is used not only to monitor bugs and defects, but also to serve as a task tracker. This practice permits the cross-reference between the commit message and the associated entry in the issue tracker, thereby allowing anyone to find the in-depth reasoning or discussion behind a particular commit. Preview...

ImmutableServer

martinfowler — Mon, 17 Jun 2013 05:00:00 +0000

This post from Martin Fowler's blog is by Kief Morris. Preview Text: Automated configuration tools (such as CFEngine, Puppet, or Chef) allow you to specify how servers should be configured, and bring new and existing machines into compliance. This helps to avoid the problem of fragile SnowflakeServers. Legacy ...

Unit Testing: HamCalc's Quirks

slott — Mon, 17 Jun 2013 04:55:00 +0000

Careful study of the HamCalc shows a number of quirks. Some are funny, some are just examples of the need for unit test frameworks.The Wikispaces for the modernization project is here: http://hamcalc.wikispaces.com/homeFor example, the following line of code, in GW-Basic, will (usually) set Y to zero.Y = O Preview Text: Careful study of...

A Deferred Logging File Handler for Django

davidwinterbottom — Mon, 17 Jun 2013 04:50:00 +0000

At Tangent we handle environment-specific configuration of Django projects using the method outlined by David Cramer. This involves distinguishing between core settings (which we keep in core/default.py) and environment specific settings (eg core/stage.py, core/test.py). Preview Text: At Tangent we handle environment-specific...

On Pair Programming

ohookins — Sun, 16 Jun 2013 05:45:00 +0000

It has been a while since my last blog post; certainly not because I wanted to write less but I’ve just been trying to learn so damn much recently it hasn’t left much time for anything else. Whether or not I’ve actually learned anything is yet to be seen. This leads me to a subject which I am still struggling with – Pair Programming. Preview Text: ...

ConfigurationSynchronization

martinfowler — Sun, 16 Jun 2013 05:30:00 +0000

This post from Martin Fowler's blog is by Kief Morris: Preview Text: Automated configuration tools (such as CFEngine, Puppet, or Chef) allow you to avoid SnowflakeServers by providing recipes to describe the configuration of elements of a server. Legacy Sponsored: unsponsored ...

ptainai, pronounced, "Peh-tain-eye."

edmundkirwan — Sat, 15 Jun 2013 06:12:25 +0000

ptainai, pronounced, "Peh-tain-eye." Quiet congregation. A reading from the Book of Design Patterns. Preview Text: Design Patterns above claims that programming to an interface and not an implementation reduces implementation dependencies, and thus it follows that ptainai reduces the probability of ripple-effects. But is this true? ...

DevOps – Scaling Infrastructure

tparso — Fri, 14 Jun 2013 05:00:00 +0000

The theme of last Thursday’s DevOps Ireland talks at Engine Yard Dublin was automated deployment.For anyone who missed it – the first talk was by Ulrich Dangel (@mr_ud) on using Grml. The second talk was by Stéfan from Facebook on Kobold which they use to bring up and tear down clusters. Preview Text: The theme of last Thursday’s...

Release More with Less

agilestevesmith — Fri, 14 Jun 2013 04:48:26 +0000

Continuous Delivery enables batch size reduction Preview Text: Continuous Delivery aims to overcome the large delivery costs traditionally associated with releasing software, and in The Principles of Product Development Flow Don Reinertsen describes delivery cost as a function of transaction cost and holding cost. Legacy ...

Tip: Using Notepad++ to Read Log Files

dhelper — Thu, 13 Jun 2013 05:50:00 +0000

I had to read a log file containing a few hundred lines today at work.My first instinct was to open it using my trusty Notepad++. While the file was not huge it was still difficult to traverse it and my eyes kept jumping between lines. Finding the errors and warning was proving to be a hard task. Preview Text: I had to read a log file...

The Benefits of Fail-Safe Application Deployments

kuthiala — Thu, 13 Jun 2013 05:43:31 +0000

Enterprises are building, testing, and deploying software faster and more frequently now than at any point in the past. Faced with unprecedented demands, many of these software development organizations are realizing their rollout processes are haphazard, at best. These improvised procedures lead directly to heightened numbers of costly, time-consuming errors that degrade their...

Python - concurrencytest: Running Concurrent Tests

cgoldberg — Thu, 13 Jun 2013 05:10:00 +0000

Add parallel testing to your unit test framework.In my previous post, I described running concurrent tests using nose as a loader and runner. Preview Text: This tutorial runs through the process of adding parallel testing to your unit test framework with Python. Legacy Sponsored: ...