Latency SLO
Latency SLO

How do you set Latency based alerts? The most common measurement is a percentile-based expression like: 95% of the requests must complete within 350ms. But is it as simple?

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A Primer on Saturation SLO: What Is It and Do You Need to Consider It?
A Primer on Saturation SLO: What Is It and Do You Need to Consider It?

What is Saturation and why should you think about it as an SLO? Saturation can be understood as the load on your network and server resources.

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Sleep Friendly Alerting
Sleep Friendly Alerting

We've all been woken up with that dreaded Slack notification at ungodly hours only to realise that the alert was all smoke and no fire. The perfect recipe for dread and alert fatigue.

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Services; not Server
Services; not Server

Gone are the days of yore when we named are our servers Etsy, Betsy, and Momo, fed them fish, and cleaned their poop.

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Systems Observability
Systems Observability

Observability is not just about being able to ask questions to your systems. It's also about getting those answers in minutes and not hours.

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AWS security groups: canned answers and exploratory questions
AWS security groups: canned answers and exploratory questions

While using a Terraform lifecycle rule, what do you do when you get a canned response from a security group?

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SRE with Last9 is incredibly easy. But don’t just take our word for it.

Last9 is an operational intelligence platform for SRE.