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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

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Who am I ● KKBOX Product Platform Develop Devision(PPDD) Programmer ● Full-Stack Programmer ● Love Community, PHP, Open Source

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Agenda ● What’s Notification Center ● How we use Notification Center ● Case study

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What’s Notification Center ● Announcement ● New Release ● Listen-with Artist online ● Subscritpion ● Billing Announcement ● ...

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Notification Center history ● MySQL ● more… more… more… ○ Kind of message ○ Users ○ Faster

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Why Redis ● Flexible Data Structure ● Some powerful command ○ INCR ○ ZADD ○ LPUSH ○ ZREVRANGE ○ … ● Twitter

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Data Structure

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Redis Replication Structure

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Monitor

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Monitor

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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...

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Case 2. Failover bandwidth problem

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Conclusion ● What’s Notification Center ● How we use Notification Center ● Case study

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Contact me ● hashman @ Github ● Hash Lin @ Facebook ● hashmanlin@kkbox.com