Tech Blog

We are excited to announce the public release of NuRaft, a lightweight C++ Raft core, under the Apache 2.0 open source license. NuRaft is based on the cornerstone C++ Raft implementation, but with various additions and changes, and is the result of over two years of development and testing for production use within eBay for storage server data replication. This post discusses what NuRaft is, and how it can be used.

At eBay, we switched one of our monitoring tech stacks from legacy homegrown architecture to a Druid-based real-time monitoring system. In this article, we discuss how we transitioned our journey to a new stack and also the benefits it has to offer.

At eBay, nearly everything we do is based on data. We deal with structured, unstructured, and semi-structured data, where Hadoop, as a big data platform, has provided key technology features. Keeping pace with the speed of innovation while continuing to help data consumers easily find and consume the data they need guides our architecture and investment in building out eBay’s Big Data Fabric.

One of the frequently asked questions from new site reliability engineers is: Where to begin when troubleshooting a problem in a cloud environment? I always tell them: You should begin with understanding the problem. Let me demonstrate the reasons and methods with a real troubleshooting case.

Most Java virtual machine out of memory issues happen on the heap, but this time proved to be a little different.

Availability and stability are very important for eBay's site, especially for those applications that take high traffic and are dependent on many other applications, such as CAL (our Centralized Application Logging framework). This blog shares an issue that happened recently that impacted the availability and stability of CAL, and how we found out the root cause using tcpdump and systemtap.