Live Commenting: Behind the Scenes

What this post added

Introduced 'Live Commenting' feature, requiring a new system to handle real-time comment updates. This involved moving from a polling-based approach to a push-based approach due to scalability concerns. A novel 'write locally, read globally' data strategy was implemented to manage the high rate of viewer-to-content associations, contrasting with traditional 'read locally, write globally' patterns. This system was built to handle 100 million pieces of content and 650,000 comments per minute.