+---------------+ +---------------+ +---------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Android | | Iphone | | Web | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---------------+ +---------------+ +---------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------|-------+ | | | | | | | | | | | | | | | | | || || | | | | | | | | | | | | | | | | | | | | Twitter Frontend | | | | // | // | | /// | / /// | |// // | | / /// | | / // | | // /// | | / /// | | / // | | // /// | | / // | | / /// | | // // +---------------+ / /// / /// // // / /// / // // /// / /// / // // |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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// | | /// +---------------+ | / | | // | // | | /// | // | | /// | / | | /// | // | | // | / | | /// | // | | // | | | | // | | | | // | | | | // | | +-------------------|------------------------------------------------/-----------------------------------------------------------------------------------+ | | // | | // | | // | | | | | | | | | | | | | | | | | | | | | | | // | | //// | | /// | | /// | | //// | | /// | |/ /// | /////// | /// //// | //// //// | /// /// | /// //// | //// //// | /// /// | //// //// | /// //// | /// //// | //// /// | /// //// | /// //// | //// +-----------------------------------------//----------------------------------------------------------------------------------------------------|--+ |/ | | | | | | | | | | | | | | | | | | | | | | +----------------------------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +-------|-------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ## **Timeline mixer** | | | | | - Inject ads, who-to-follow, onboarding | | Home mixer | | | - Conversation module | | | | | | - Cursoring,pagination | | | | | | - Tweat deduplication | | | | | | - Served data logging | | /| | | | | | // | | | | | | // /| | | | | | // / | | | | | | // // +---------------/ | | | | // / | | | | / | | | | // / | | | | / | | | | // // | | | | / | | | | // / | | | | / | | | | // / | | | | / | | | | // // | | | | / | | | | // / | | | | / | | | | // / | | | | / | | | | // // | | | | / | | | | // / | | | | / | | | | // / | | | | / | | | | // // | | | | / | | | | // / | | | | / | | | | // / | | | | / | | | | // // | | | | / | | | | // / | | | | / | +----------------------------------+ | // / | | | | / | | // // | | | | / | | // / | | | | / | | // / | | | | / | | // // | | | | / | | |/ / | | | | / | | | | | | | | | +--------------------------------------------------------------------------------------------------------------------------------------------------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | / / | | | | | | | | | | | / / | | | | | | | | | | | // // | | | | | | | | | | | / | | | | | | | | | | | / / | | | | | | | | | | | / / | | | | | | | | | | | // / | | | | | | | | | | | / // | | | | | | | | | | | / / | | | | | | | | | | | // / | | | | | | | | | | | / | | | | | | | | | | / | //| | | | | +--------------+ | | | | | / | |/ | | | | | | | | | | | // | | / | | | | | | | | | | | / | | / +------------+ | +---------------+ +-------------------+ | | | | | | | / | | / | | | | | | | | | +--------------+ +---------------+ +--------------+ +--------------+ +-------------------+ +----------------+ // | | +------------+ | | | | | | | | | | | | | | | | | | /| | | | | | | | | | | | | | | | | | | | | | / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Timeline | | | | Onboarding | | People discovery | | Fetch | | Tweety Pie | | Social graph | | Gizmoduck | | Manhattan | | Timeline Service | | Home Ranker | | Scorer | | Ad mixer | | service | | service | | | | | | | | | | | | | | | | | | | | | | | | // | | | | | | | | | | | | | | | | | 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| //// ///// ///// | | | | +-------|-------+ //// ///// ///// | | | | | | ///// //// ///// | | | | | | //// ///// ////// | | | | | ///// ///// ///// | | | | | //// //// ///// | | | +----------------+ | | ///// ///// ///// | +--------------|--+ | | | | | //// ///// ///// | | | | | | | | //// ///// ////// | | | | | | | | ///// //// +---------/|/// | | +--------|-----+ | | | | //// ///// | | ///// | | | | | | | ///// ///// | | ///// | | | | | | | //// |///// | | ///// | | | | | | | //// | ////| | ////// | | | | | | ///// | ///// | |///// | | | | | | //// | | /// | /// | | | | | /// | | | | | | | Prediction Service | ...etc | | Memcache | | Manhattan | | Scoring | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---------+ | | +--------------+ | | | | | | | | | | | | | | | | | | | | | | +-----------------+ | | | | +-------|--------+ | | | | | | +---------------+ | | | | | | | | | | | | | | | | | | | | | | | | | +-------|-------+ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prediction Service | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | +---------------+