Скачать или смотреть High-Speed Distribution to Enormous Group Using Pub/Sub of Redis - 2021 English version -

Server Side #linedevday
LINE LIVE has to simultaneously synchronize the settings of various systems and users in the chat system because the number of concurrent user connections reaches several hundreds of thousands in some live streams.
It has many functions which prioritize the timing to reflect information for all users in real-time and at the same time as much as possible, so their accuracies significantly affect the usability.
There has been a mechanism to get and cache information when necessary, but the information is updated only when caches are expired. If the effective period is shortened to raise the update frequency, caches will be meaningless. So the real-time operation was the only way to achieve the purpose of simultaneous operation.
To solve this problem, we introduce a mechanism to deliver information to 120 chat servers in almost real-time and store cache in each server using Pub/Sub of Redis.
In this session, I will introduce the overview of the chat system of LINE LIVE and the newly introduced mechanism of synchronization.

■ Speaker
Kazuya Horiuchi
LINE / Development Team H / Engineer
Kazuya Horiuchi is a LINE LIVE server-side lead engineer.
Horiuchi has been engaged in the server-side development of LINE LIVE since joining LINE in 2015.
Horiuchi decides specifications and development directions hearing opinions of other departments to successfully run the LINE LIVE business including the ease of operation. Horiuchi is also engaged in improvements to provide and develop stable services.

■ Website
https://linedevday.linecorp.com/2021/...

■ Slide
https://speakerdeck.com/line_devday20...

■ Other language Movie
JP:    • RedisのPub/Subを使って設定情報を大規模ユーザに高速配布した話 - 202...  
KO:    • Redis Pub/Sub을 사용해 대규모 사용자에게 고속으로 설정 정보를 배...