Questions tagged [redis]

Use this tag for questions on how Stack Exchange leverages Redis to cache its content.

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11 votes
1 answer

How does Stack Exchange achieve High Availability with Redis?

I'm curious about Stack Exchange's HA setup for Redis. Based on existing blog posts and other answers, I understand that there are 2 nodes per instance per datacenter - a master and a slave. But how ...
Joseph Daigle's user avatar
19 votes
2 answers

Stack Overflow DB performance and redis cache

I am trying to understand some of the data storage and caching details of Stack Overflow. Are the pages build completely from redis cached data or does it need to make some db calls? Assuming that ...
Anoop's user avatar
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