Скачать или смотреть Designing a Photo Sharing Service | Google Engineering Manager |

The video discusses the scaling requirements for a photo-sharing system, focusing on the space requirements for metadata. The system will need approximately 175 GB of metadata storage for six years, which cannot be held by a single commodity server. Therefore, sharding is required to distribute the data among multiple servers. The author proposes a template to identify bottlenecks in the system, using the acronym SDPHAG (Storage, Throughput, Parallelism, Hotspot, Availability, and JIO). The article then focuses on storage, the first component of the template, and discusses the need for distributed file storage and sharding. Sharding can be done based on photo ID, and the article provides an example of how servers can be added horizontally to scale the system.

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