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recording a programmer's thought

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Optimizing 700 CPUs Away With Rust

This post was published on the Tenable Techblog on May 6th 2021. It is a classic example on how a small optimization can have enormous impact at scale.

View at Medium.com
May 21, 2021Alan Ning Leave a comment

Scaling Tenable.io – From Site to Cell

This post was published on the Tenable.io techblog on March 4th 2021. It describes a solution on how to shard petabytes of data across hundreds of Elasticsearch clusters.

https://medium.com/tenable-techblog/scaling-tenable-io-from-site-to-cell-258b722407e3

March 4, 2021Alan Ning tenable.io Leave a comment

Lessons from AWS NLB Timeouts

This is a post I wrote for Tenable Techblog on how we gained a better understanding on the subtle timeout behavior of AWS NLB.
https://medium.com/tenable-techblog/lessons-from-aws-nlb-timeouts-5028a8f65dda

March 18, 2019Alan Ning Leave a comment

Saving the VA $100 million by fixing their cloud architecture

A story on how we fixed the VA’s cloud architecture and saved $100 million.
https://medium.com/@usdigitalservice/saving-va-100-million-dollars-c5d992e0cf54

April 20, 2018Alan Ning Leave a comment

Five Minutes of Actions

I was writing a post to record an interesting bug I uncovered with Cisco Router’s TCP PAWS implementation. The post ended up in USDS Medium.

July 3, 2017Alan Ning Leave a comment

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