• Articles (4)
Java in Engineering
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SRE Case Study: URL Distribution Issue Caused by an Application

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.

By: Charles Li
Java in Engineering
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SRE Case Study: Mysterious Traffic Imbalance

As an architect of a large website, I spent over a decade of my life working on all kinds of troubleshooting cases. Many of those cases were quite challenging, similar to finding a suspect in a megacity, yet quite rewarding. I ended up with many Sherlock Holmes stories to tell. What I am sharing today is a troubleshooting case of mysterious traffic imbalance.

By: Charles Li
Cloud in Engineering
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Managing HTTP Header Size on NetScaler Load Balancers

The way that the NetScaler load balancer handles oversized HTTP header is not quite straightforward when combined with layer 7 policies and may result in unexpected consequences and bad user experiences if overlooked. This article explains how the header limit works and offers our recommendations on how to manage it properly.

By: Charles Li
Frontend Engineering in Engineering
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Optimization Study on Processing Order of NetScaler Load Balancer Layer 7 Policies

Traffic on ebay.com is processed by thousands of layer 7 policies on the load balancers. Clearly understanding the processing order ensures availability (by avoiding misconfigurations) and performance (by prioritizing the policies efficiently).

By: Charles Li, John Yang and Leona Zhang
Charles Li

Charles Li

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