知鸦日报2024-10-14

An interesting detail is in how the cells multiply. There is a degree of randomness where all outer cells don’t multiply evenly. Some cells multiply first, and other cells follow later...much later in some cases. The end result of this randomness is that we can see that the cell growth is a bit uneven at various moments in time.

古茗内部有一个 CDN 文件上传平台，用户在平台上传文件时，会将文件上传至阿里云 OSS 对象存储，并将 OSS 链接转换成 CDN 链接返回给用户，即可通过 CDN 链接访问到文件资源。我们对 CDN 文件的缓存策略是持久化强缓存(Cache-Control: public, max-age=31536000)，这就要求所有上传文件的文件名都是唯一的，否则就有文件被覆盖的风险。有哪些方式可以保证文件名全局唯一？

本文主要介绍了 AE 策略中心的技术方案选型与落地实战。