Brent Sordyl's blog

Tenzing A SQL Implementation On The MapReduce Framework

February 1, 2012 by Brent Sordyl 0 Comments

Tenzing is a query engine built on top of MapReduce for ad hoc analysis of Google data. Tenzing supports a mostly complete SQL implementation (with several extensions) combined with several key characteristics such as heterogeneity, high performance, scalability, reliability, metadata awareness, low latency, support for columnar storage and structured data, and easy extensibility. Tenzing is currently used internally at Google by 1000+ employees and serves 10000+ queries per day over 1.5 petabytes of compressed data. In this paper, we describe the architecture and implementation of Tenzing, and present benchmarks of typical analytical queries.

(Full Story: Tenzing A SQL Implementation On The MapReduce Framework)

google, mapreduce, nosql

bigdata, google, mapreduce, moresql, nosql

15 Mind-Bending Interview Questions That Every Google Engineer Can Answer

February 1, 2012 by Brent Sordyl 0 Comments

4. If we had a list of n nodes, what are the maximum number of edges there can be for a directed acyclic graph?

(Full Story: 15 Mind-Bending Interview Questions That Every Google Engineer Can Answer)

google, interview

Google BigQuery Service

December 7, 2011 by Brent Sordyl 0 Comments

Google BigQuery Service is a web service that enables you to do interactive analysis of massively large datasets—up to billions of rows. Scalable and easy to use, BigQuery lets developers and businesses tap into powerful data analytics on demand.

(Full Story: Google BigQuery Service)

google, nosql

bigdata, google, nosql

The Eight Pillars of Innovation | Think Quarterly by Google

August 31, 2011 by Brent Sordyl 0 Comments

Have_a_mission_that_mattersThink_big_but_start_smallStrive_for_continual_ innovation, not_instant_perfectionLook_for_ideas_everywhereShare_everythingSpark_with_imagination, fuel_with_dataBe_a_platformNever_fail_to_fail

(Full Story: The Eight Pillars of Innovation | Think Quarterly by Google)

google, innovation

Google Prediction API – Google Code

July 19, 2011 by Brent Sordyl 0 Comments

The Prediction API enables you to make your smart apps even smarter. The API accesses Google’s machine learning algorithms to analyze your historic data and predict likely future outcomes.

(Full Story: Google Prediction API – Google Code)

cloudcomputing, google, machinelearning, programming

google-refine – Google Refine, a power tool for working with messy data (formerly Freebase Gridworks) – Google Project Hosting

July 12, 2011 by Brent Sordyl 0 Comments

Google Refine is a power tool for working with messy data, cleaning it up, transforming it from one format into another, extending it with web services, and linking it to databases like Freebase.

(Full Story: google-refine – Google Refine, a power tool for working with messy data (formerly Freebase Gridworks) – Google Project Hosting)

google, opensource

Google’s API for APIs Makes Sense of Its 80+ Services

May 16, 2011 by Brent Sordyl 0 Comments

There are other ways of describing APIs. For SOAP APIs, there are WSDL files that show methods of inputs. For REST there is WADL, but even its apparent simplicity has been too complex for some. At the very least, support for WADL has been minimal. It’s unclear whether Google has created generic enough to work for other API providers. However, it’s obviously something that Google saw the need for, at least internally.
The Google API Discovery API is one of two APIs for APIs.

(Full Story: Google’s API for APIs Makes Sense of Its 80+ Services)

api, google, wadl

Datacenter power use visualized

April 25, 2011 by Brent Sordyl 0 Comments

(Full Story: Datacenter power use visualized)

datacenter, facebook, google

datacenter, energy, facebook, google

Video – James Gosling on Apple, Apache, Google, Oracle and the Future of Java

April 7, 2011 by Brent Sordyl 0 Comments

“I hate JSF with a passion”

(Full Story: Video – James Gosling on Apple, Apache, Google, Oracle and the Future of Java)

google, java, jsf

google-authenticator – Google Project for Two-step verification

March 22, 2011 by Brent Sordyl 0 Comments

The Google Authenticator project includes implementations of one-time passcode generators for several mobile platforms, as well as a pluggable authentication module (PAM). One-time passcodes are generated using open standards developed by the Initiative for Open Authentication (OATH) (which is unrelated to OAuth).
These implementations support the HMAC-Based One-time Password (HOTP) algorithm specified in RFC 4226 and the Time-based One-time Password (TOTP) algorithm currently in draft.

(Full Story: google-authenticator – Google Project for Two-step verification)

authentication, google, security