OpenTube

How are videos streamed live on Youtube ?

Vinayak Sangar

13,724 views

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20 Comments

Most caching solutions like hazelcast or oracle coherence provide request collapsing to handle thundering herd problem. Not sure what they use internally for that .. may be promise cache as you mentioned.

@LeoLeo-nx5gi 4 years ago

Hey this is very nice, would be great to know if sometime in future you would cover System design of Zoom or Google meets, as even they might have something simliar or not sure. Thanx again

@tensaebeyene6531 2 years ago

Very great description of the problem, never saw any other video which described the design to such level! Thank you!

@karthikmucheli7930 3 years ago

Really liked the way you presented the video. Especially having the block diagram wrong and correcting that while you explain

@360Anurag 2 years ago

Well explained.
Could have touched on HLS as well as its popular.

@JustFlowers-k 2 years ago

concepts are explained very clear. your teaching style is awesome.

@cschandragiri 3 years ago

Thanks buddy! Had never heard about promised cache

@visheshgupta4990 2 years ago

Thankyou so much it is literally very useful 👏👏🙌🙌

@Chetanacharekar-r6m 3 years ago

This video is gold !! Thanks for efforts!

@42Siren 2 years ago

Great video. Thanks

@Rakeshkumar-po2yg 3 years ago

Thankyou for your contribution. Can you please create a video for design of a payment gateways.

@JAIGANESH-gd3qj 2 years ago

Nice explanation 🎊🎉

@roushanraj8530 3 years ago

Very very detailed solution for this design, This Channel is going to be one of the biggest in coming future, please cover all important system design question which are getting asked in FAANG interviews.

Thank you so much for this kind of content.

@thegt 2 years ago

Can you please make more videos! 🙏🏼

@deepshikhazutshi6997 2 years ago

Great explanation! Wouldn't we be utilising CDN instead of cache?

@kapilchauhan7954 2 years ago

Loved it

@leamon9024 2 years ago

Thanks. How do you implement promise cache as you mentioned?

@mohinicoder 2 years ago

I am wondering why didn't you use CDN instead of cache, in between end user watching stream and facebook server?

@RishinderRana 2 years ago (edited)

Learnt a lot from this video. Well diagrammed and explained. Great job! Quick question though. Here you're storing the live stream to s3 and intend to serve it from there. So new streaming content will be written to the disk every second. Can the client read from the new files on the fly while the file has jsut been written without any latency? or do we need to stream the data directly to some broker that delivers the content as a data stream instead.