看 KKBOX 怎麼走通知這條路 @ COSCUP 2018

小小的鈴鐺按鈕背後隱藏了許多的秘密，分享 KKBOX 怎麼建構通知中心的大小事。
KKBOX 如何透過 Redis 來建構通知中心

1. This presentation is provided on a strictly private and confidential basis for information purposes only. 看 KKBOX 怎麼走 通知中心這條路 presented by Hash Lin 2018/08/02
2. Who am I • KKBOX Product Platform Develop Devision(PPDD) Programmer • Full-Stack Programmer • Love Community, PHP, Open Source
3. Agenda • What’s Notification Center • How we use Notification Center • Case study
4. What’s Notification Center • Announcement • New Release • Listen-with Artist online • Subscritpion • Billing Announcement • ...
5. Notification Center history • MySQL • more… more… more… ◦ Kind of message ◦ Users ◦ Faster
6. Why Redis • Flexible Data Structure • Some powerful command ◦ INCR ◦ ZADD ◦ LPUSH ◦ ZREVRANGE ◦ … • Twitter
7. Data Structure
8. Redis Replication Structure
9. Monitor
10. Monitor
11. Case 1. Read after write problem • Do not use different connection when write/get the same key (Singleton) • write key ‘hash’ in master • read key ‘hash’ in slave • I can’t get key ‘hash’ in slave Orz...
12. Case 2. Failover bandwidth problem
13. Conclusion • What’s Notification Center • How we use Notification Center • Case study
14. Contact me • hashman @ Github • Hash Lin @ Facebook • hashmanlin@kkbox.com