YDN Blog

7758880178_4b2068050e_zPhoto credit to Reid Burke

Since 2007, YDN has been hosting amazing Hack Days in India. The first five open hack events in India have been held in Bangalore, and we’ll be back in Bangalore later this year. This is our first open hack event in Hyderabad, and we expect this one will also embody the passion, energy and spirit of our previous events in India.

The event is shaping up to be a great one. Become familiar with YQL, Mojito and YDN with some stellar speakers from across Yahoo! Learn about Yahoo! BOSS & Geo services from Pradeep Banavara. Take a gander at YUI’s Pure CSS with Sudar Muthu. Get acquainted with the Flickr API during a talk by Amit Kumar. We’ve invited a number of tech companies to come show off their technologies and APIs as well, so come prepared to learn!

Demand for our previous India open hack events has consistently been high. For each event, we typically see overwhelming demand, with over 4,000 hackers, both developers and designers, applying. The response and

Every Thursday is Tech Thursday where we share a random assortment of technical links we found and liked.

Front-End Developer reactions is probably the best Tumblr you will see today.

To ensure a strong brand identity, every organization needs a design style guide, to ensure that all its visual assets adhere to consistent principles. Take a look at Google's design principles.

GistBox is the personal code library you've always wanted, it is a beautiful way to organize code snippets.

Build your own Google TV Using RaspberryPi, NodeJS and Socket.io. This project is not intended to replicate an actual GoogleTV, but it’s simply a proof of concept using modern web technologies.

whoops is a nice little library that helps you develop and maintain your projects better, by helping you deal with errors and exceptions in a less painful way.

LanguageDetector is a useful PHP class to detects languages of any free text.

Ultimate CSS Gradient Generator by @colorzilla makes it easy to create CSS3

At Yahoo! we have worked on the convergence of Storm with Hadoop, as mentioned in our earlier post. We are pleased to announce that Storm-YARN has been released as open source. Storm-YARN enables Storm applications to utilize the computational resources in a Hadoop cluster along with accessing Hadoop storage resources such as HBase and HDFS.

Motivation
Collocating real-time processing with batch processing offers a number of advantages over segregated clusters.

• It provides a huge potential for elasticity. Real-time processing will rarely produce a constant and predictable load. As such, Storm needs more resources to keep up with spikes in demand. Collocating Storm with batch processing allows Storm to steal resources from batch jobs when needed and give them back when demand subsides. The Storm-YARN effort lays the groundwork to make this possible.
• Many applications use Storm for low-latency processing and Map/Reduce for batch processing while sharing data between Storm and Map/Reduce.

We know when you use Yahoo! platforms and APIs, you are trusting us with critical components of your applications. We are always striving to build on that trust so we are excited to announce the launch of our YDN API Status Dashboard. This dashboard provides a near real time visibility into the health of Yahoo APIs and platforms. You will be able to see whether our services are currently up, as well as historic stats. The uptime status is updated every few minutes and reflects the current system status. We are launching this API Dashboard by showcasing our various BOSS API offerings.

YDN API Status Dashboard

This is our version 1.0 and we will be adding more YDN services in future. Take a look at the new dashboard and let us know what you think. We want to hear your feedback so we can improve our next version.

By Francis Liu and Sumeet Singh

In 2009-2010, Yahoo! saw an unprecedented growth in the number of users coming onboard to its Apache Hadoop platform for their data processing and analytics needs. We attribute a majority of that success and increase in user base to the introduction of multi-tenancy, security, and partitioned namespaces in Hadoop.

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With Hadoop and its ecosystem components like Apache Pig and Apache Oozie getting popular at Yahoo!, we needed a solution to store mutable data and support random access to the stored data to complement the Apache Hadoop platform. Yahoo! had been using Apache HBase in isolated instances, most notably for the CORE personalization platform and for the web crawl cache at the time. However, the use of Apache HBase was limited to large projects that had the resources to operate dedicated HBase clusters.

In 2012, Yahoo! developed multi-tenancy in Apache HBase to cater to a growing number of use cases where HBase was an excellent fit as part of its

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Yahoo! Hack Day in India has been a cherished tradition for Yahoo! Developer Network since 2007. We have hosted some of our largest hackathons in India and have been humbled by the overwhelming demand (last year, more than 4,000 applied) from top developers to participate year after year. During our past hackathons, we have heard stories of developers traveling from several different states around the country to hack with us. We know that India has a number of fast growing tech hubs with brilliant developers in addition to Bangalore. So this year, we are thrilled to expand our hackathons to a new location with the first ever Yahoo! Hack India in Hyderabad on July 13-14! Later this year, Yahoo! Hack India will return to Bangalore to reunite with our old hacker friends, and we will continue to take our hackathons to other Indian tech hubs.

We are anticipating a huge response from developers in Hyderabad for a limited number of seats, so we will have a coding challenge in advance of the

Every Thursday is Tech Thursday where we share a random assortment of technical links we found and liked.

• We all revel in how easy it is to create the basic HTML5-based app, but creating a great HTML5-based app is another story. Here are a few considerations and tips you should mull over before jumping into your first HTML5 app.
• Company logos created in pure CSS. Hover over the icons for a behind-the-scenes reveal and comparison with the image version.
• Have you become dependent on a JS-library? An interesting view: How jQuery made me become a programmer.
• A comparison of various JS frameworks using cold hard data.
• Handy PHP and MySQL queries for developers to help you perform your work smartly.
• Explore your GitHub archive data in 3D or view existing archives.
• There's a lot more to simple design than you think. Here are 10 golden rules of simple, clean design to make you create designs that pop.
• Topcoat is CSS for clean and fast web apps, with code for both desktop and mobile devices. It

JSConf is one of those conferences that feels more like a gathering of friends than a meeting of strangers. The conference began five years ago in Washington DC, and was even then more a gathering of friends than the typical tech conference. YDN has been proud to be a part of the event since the beginning.

This year’s JSConf was held at Amelia Island, FL, and as usual, sold out very early on. Some of my favorite talks were Remy Sharp’s Lessons from the Experimental Edge of Technology and Seb Lee-Delisle’s Creative JS - making art in the browser. All the talks were great, but these were spectacular. While the talks were great, as they always are, the conference organizers took great pains to cultivate smart conversations outside of the talks.

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There were events designed to spur conversations in small groups, like Putt Putt one night, the evening campfires and the Thursday off sites. There was also a full track for significant others and decompression activities outside of the main