eBay Tech Blog

From the category archives:

Data Infrastructure and Services

Fine-Tuning the eBay Technical Infrastructure: A New Methodology

March 5, 2013

I’ve been with eBay Inc. since 2009, and even just in the past four years, I’ve witnessed a significant change in the growth and importance of data centers, and the way we, as an industry, measure their efficiency. The Green Grid’s Power Usage Effectiveness (PUE) metric – as well as the water and carbon equivalents [...]

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Validating Hadoop Platform Releases

October 17, 2012

Intern Pralay Biswas submitted the following blog post at the conclusion of his summer with eBay. Pralay was one of 120 college interns welcomed into eBay Marketplaces this summer. In pioneer days, they used oxen for heavy pulling, and when one ox couldn’t budge a log, they didn’t try to grow a larger ox. We [...]

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Cassandra Data Modeling Best Practices, Part 2

August 14, 2012

In the first part, we covered a few fundamental practices and walked through a detailed example to help you get started with Cassandra data model design. You can follow Part 2 without reading Part 1, but I recommend glancing over the terms and conventions I’m using. If you’re new to Cassandra, I urge you to [...]

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Cassandra Data Modeling Best Practices, Part 1

July 16, 2012

This is the first in a series of posts on Cassandra data modeling, implementation, operations, and related practices that guide our Cassandra utilization at eBay. Some of these best practices we’ve learned from public forums, many are new to us, and a few still are arguable and could benefit from further experience. In this part, [...]

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