Does Twitter still use Redis?

Redis was first used within Twitter in 2010 for the Timeline service. It is also used in the Ads service. The on disk features of Redis are not used. Partly this is because inside Twitter the Cache and Storage services are in different teams so they use whatever mechanisms they think best.

How are tweets stored?

When you tweet it’s stored in an internal system called T-bird, which is built on top of Gizzard. Secondary indexes are stored in a separate system called T-flock, which is also Gizzard based. Unique IDs for each tweet are generated by Snowflake, which can be more evenly sharded across a cluster.

Why does Twitter use Redis?

Internally Twitter runs multiple cache services. Our Redis clusters store data for some Twitter’s most important use cases such as impression and engagement data, ad spend counting, and Direct Messages.

How do you make a Twitter timeline?

Design the Twitter timeline and search

1. Step 1: Outline use cases and constraints. Gather requirements and scope the problem.
2. Step 2: Create a high level design. Outline a high level design with all important components.
3. Step 3: Design core components. Dive into details for each core component.
4. Step 4: Scale the design.

What is twitter fanout?

whenever a new tweet is published, it reaches the fanout service, the fanout service queries the social graph service, find out all the followers (target timelines), then it inserts the tweet id into the Redis cluster in the format (tweet_id, author_id, meta_data).

How do you create a twitter search?

Starts here22:10Part II – System Design Twitter Search – YouTubeYouTube

What frontend framework does Twitter use?

Bootstrap, originally named Twitter Blueprint, was developed by Mark Otto and Jacob Thornton at Twitter as a framework to encourage consistency across internal tools. Before Bootstrap, various libraries were used for interface development, which led to inconsistencies and a high maintenance burden.

What does Twitter use for frontend?

Twitter recently switched all of their mobile web front-end users to a modern, JavaScript-based web stack. In doing so, they demonstrated how advancements in mobile web technologies rival the performance of native-based apps.

Why is my Twitter user timeline so small?

Most users don’t tweet very much, so their User Timeline is small. Home Timelines, especially those involving celebreties can be huge.

How many times a day should you tweet on Twitter?

Sometimes even a few times a day. Instead of re-using any tweet, choose only your top tweets. That’s because, with the help of the new timeline algorithm, popular tweets can spread further and wider. For example, here’s a piece of content that we recently tweeted twice.

How do I view top tweets in my timeline?

You can choose between viewing top Tweets in Home first, or the latest Tweets first in your timeline (available on Twitter for iOS and Android, and twitter.com). Home, or top Tweets, are ones you are likely to care about most, and we choose them based on accounts you interact with frequently, Tweets you engage with, and much more.

What are the sections of the Twitter timeline?

The Twitter timeline consists of three main sections: 1 Ranked tweets 2 “In case you missed it” 3 Remaining tweets in reverse-chronological order