Best Practices for Accelerated Image Distribution Using Dragonfly

Summary

• Dragonfly is a P2P-based image and file distribution system used to improve the physical and speed of large-scale field distribution
• Dragonfly has been selected and put into production by many internet companies since it was open-sourced in 2017
• The system architecture of Dragonfly consists of four services: manager, scheduler, asset peer, and pure peer
• The manager service is used to manage the relationship between multi-clusters or P2P clusters and provides a dynamic configure management
• The scheduler service selects candidate download parents for download peer when the pure download fails and controls the peer to download the task
• The asset peer is triggered by the scheduler to download back to songs and divide the results into pieces
• The pure peer is the calendar in P2P network and can be downloaded and uploaded
• Dragonfly can be combined and used with other systems in the ecosystem, such as Harbor, Nydus, and eStargz

Abstract