Quastor

Quastor

Get Summaries of Big Tech Engineering Blog Posts on Frontend, Backend, Machine Learning, Data Engineering and more!

Featured Posts

How Uber Scaled Cassandra to Tens of Thousands of Nodes

How Uber Scaled Cassandra to Tens of Thousands of Nodes

An introduction to Apache Cassandra and issues Uber ran into when scaling. Plus, API versioning practices at LinkedIn, challenging algorithms to try and more.

How Grab uses Graph Databases to Reduce Fraud

How Grab uses Graph Databases to Reduce Fraud

Plus, Tips on Negotiating Compensation for Software Engineers from a Principal Engineer at Amazon

Why Netflix integrated a Service Mesh in their Backend

Why Netflix integrated a Service Mesh in their Backend

We'll talk about what a service mesh is, what purpose it serves and why Netflix added one. Plus, strategies you can use to achieve your goals.

Scaling Microservices at DoorDash

Scaling Microservices at DoorDash

Common microservice failures at DoorDash and how they mitigate them. Plus, nine ways to shoot yourself in the foot with Postgres.

How Quora scaled MySQL to 100k+ Queries Per Second

How Quora scaled MySQL to 100k+ Queries Per Second

Plus, what makes a great manager of software engineers, how shopify uses pair programming for mentorship, actionable tips on improving speed and more.

Machine LearningMachine Learning
How OpenAI trained ChatGPT

How OpenAI trained ChatGPT

Plus, how Meta integrated Raft with MySQL, lessons learned at Slack while building on AWS GovCloud and How Nike's bot detection works

Archive

BackendBackend
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How Facebook Transfers Exabytes of Data Across The World

How Facebook Transfers Exabytes of Data Across The World

Facebook needs to send exabytes of data across their different data centers. We talk about how they do this.

BackendBackend
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How Pinterest Load Tests their Database

How Pinterest Load Tests their Database

Pinterest uses Apache Druid for Ad Reporting metrics. Here's how they load test Druid for the holidays.

BackendBackend
How Mixpanel Fixed Their Load Balancing Problem

How Mixpanel Fixed Their Load Balancing Problem

Mixpanel used a simple technique called The Power of 2 Choices to solve their workload skew issue.

BackendBackend
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The Architecture of Facebook's Distributed Message Queue

The Architecture of Facebook's Distributed Message Queue

The engineering behind Facebook's Ordered Queueing Service and how it implements At Least Once delivery.

BackendBackend
How Netflix Implements Load Shedding

How Netflix Implements Load Shedding

How Netflix classifies traffic and sheds load to ensure a smooth experience during periods of high usage.

BackendBackend
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The Engineering Behind Instagram's Recommendations

The Engineering Behind Instagram's Recommendations

How Instagram built an Information Retrieval System to power their Suggested Posts feature.

Machine LearningMachine Learning
How Dropbox implemented their Image Search feature

How Dropbox implemented their Image Search feature

Using CNNs, Word Embeddings and an Inverted Index to build Image Search

BackendBackend
How Twitch Processes Millions of Video Streams

How Twitch Processes Millions of Video Streams

How Twitch routes video streams through their private backbone network for transcoding

BackendBackend
How the BBC uses Serverless

How the BBC uses Serverless

The BBC website must be able to tolerate huge spikes in load. To do this, they rely on AWS Lambda functions.

BackendBackend
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How PayPal solved their Thundering Herd Problem

How PayPal solved their Thundering Herd Problem

Using Exponential Backoff and Jitter when retrying failed jobs to prevent downstream services from getting trampled.

BackendBackend
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How Stripe catches Fraud Rings

How Stripe catches Fraud Rings

Distributed SystemsDistributed Systems
Challenges that come with Distributed Systems

Challenges that come with Distributed Systems

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