Interview Bootcamp
Vote

0% completed

​

Push CDN vs. Pull CDN

Content has to reach the edge servers somehow. There are two ways, and they differ on one question: who moves the content, and when?

In a Pull CDN, the CDN fetches content from the origin when a user first asks for it. In a Push CDN, the content provider uploads content to the CDN ahead of time.

Pull CDN

By default the CDN stores nothing. The first time a user requests a piece of content, the CDN pulls it from the origin server, caches it on the edge server, and serves it.

.....

.....

.....

Like the course? Get enrolled and start learning!
nair mohan

nair mohan

· a year ago

This disadvantage seems incorrect. All cached content will obviously be stored on origin servers as well no matter which approach is taken

A

Anand Mohan

· 3 years ago

Please explain the above statement. It sounds bit counterintuitive.

In this case Pull CDN seems like a better choice as in Push CDN the resources would be cached but not accessed frequently leading to un-optimal utilisation of storage resource.

Show 1 reply
Aldo Gutiérrez Alcalá

Aldo Gutiérrez Alcalá

· 3 years ago

How would you avoid the single point of failure on the origin and CDN server? I can imagine serving a load balancer kind of.

Show 1 reply