• PPS Spike Every 110 Seconds on AWS EC2

    PPS Spike Every 110 Seconds on AWS EC2

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Kubernetes

Upgrading Your AWS Kubernetes Cluster By Replacing It
By Keilan Jackson on December 11, 2018

With the recent panic over the zero-day Kubernetes vulnerability CVE-2018-1002105, Kubernetes administrators are scrambling to ensure their Kubernetes clusters are upgraded to a...

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AWS

How to Diagnose and Fix AWS Lambda Iterator Age
By Mark Siebert on December 4, 2018

AWS Lambda can use stream based services as invocation sources, essentially making your Lambda function a consumer of those streams. Stream sources include Kinesis Streams and DynamoDB...

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AWS

How to Monitor AWS Lambda with CloudWatch
By Mark Siebert on November 27, 2018

Since Amazon released Lambda in late 2014, the notion of serverless applications and function-as-a-service has steadily gained steam. Being able to focus on application code and...

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Kubernetes

Safely Removing Pods From a Kubernetes Node
By Keilan Jackson on November 20, 2018

When administering your Kubernetes cluster, you will likely run into a situation where you need to remove pods from one of your nodes. You may need to debug issues with the node itself,...

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AWS

Using t2.unlimited to Increase Packet Limitations
By Matthew Barlocker on November 15, 2018

I set out to find a credit mechanism or hard-coded limit in packets per second in AWS EC2. After all my findings set out in this series so far, I had one more test to perform around...

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AWS

PPS Spike Every 110 Seconds on AWS EC2
By Matthew Barlocker on November 13, 2018

I don’t know what to say about this post… I found something weird while investigating PPS on EC2. It seems to correlate with CPU credits on t1/t2/t3 instances, but is consistently...

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