The Netflix TechBlog

OCTOBER 26, 2021

Subsequent posts will go into more details on experimentation across Netflix, how Netflix has invested in infrastructure to support and scale experimentation, and the importance of the culture of experimentation within Netflix. In this post, we’ll do the same for false negatives and the related concept of statistical power.

Testing 202

Testing Latency Metrics Innovation 202

The Netflix TechBlog

SEPTEMBER 8, 2020

The big difference from the monolith, though, is that this is now a standalone service deployed as a separate “application” (service) in our cloud infrastructure. Functional Testing Functional testing was the most straightforward of them all: a set of tests alongside each path exercised it against the old and new endpoints.

Latency 233

Latency Cache Java Traffic 233

The Morning Paper

JULY 4, 2019

This is a fascinating paper from members of Netflix’s Resilience Engineering team describing their chaos engineering initiatives: automated controlled experiments designed to verify hypotheses about how the system should behave under gray failure conditions, and to probe for and flush out any weaknesses. Safeguards.

Latency 77

Latency Engineering Metrics Traffic 77

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 52

Latency Engineering Systems Hardware 52

Adrian Cockcroft

NOVEMBER 11, 2019

There are many possible failure modes, and each exercises a different aspect of resilience. Another problem is that a design control, intended to mitigate a failure mode, may not work as intended. STPA is based on a functional control diagram of the system, and the safety constraints and requirements for each component in the design.

Latency 53

Latency Engineering Systems Hardware 53

The Morning Paper

JANUARY 23, 2020

1:18pm a key observation was made that an API call to populate the homepage sidebar saw a huge jump in latency. " Five infrastructure engineers and 3 product engineers were involved in the incident. The process tracing exercise included: Examning IRC transcripts from multiple channels.

Internet 53

Internet Internet Cache Engineering 53

O'Reilly Software

MARCH 7, 2018

Although the ideas of reactive and streaming are nowhere near new, and keeping in mind that mere novelty doesn’t imply greatness, it is safe to say they have proven themselves and matured enough to see many programming languages, platforms, and infrastructure products embrace them fully. The past and present of enterprise integration.

Transportation 72

Transportation Java Programming Architecture 72