Scaling Push Messaging for Millions of Devices @Netflix

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5 жыл бұрын

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Susheel Aroskar talks about Zuul Push, a scalable push notification service that handles millions of "always-on" persistent connections from all the Netflix apps running. He covers the design of the Zuul Push server and reviews the design details of the back-end message routing infrastructure that lets any Netflix microservice push notifications to any connected client.
This presentation was recorded at QCon New York 2018: bit.ly/2JFHitG
#SoftwareArchitecture #Netflix #ZuulPush #InfoQ #QConNewYork

Пікірлер: 63

@prudvim3513 2 жыл бұрын

Much better than watching "Design a Notification Service" System design interview videos.

@zkwentz 2 жыл бұрын

The “ask client to close” due to TCP wait avoidance, is brilliant. Well done!

@bedtimestoriesforkids9755 3 жыл бұрын

I am watching this right before a system design session! :)

@vibhorsharma6172 3 жыл бұрын

Same lol

@ThanosVassilakis 3 жыл бұрын

This a great talk that really warms up after 20 minutesin when the talk goes into operation details.

@Nemosaur 3 жыл бұрын

This has been so insightful Thank you so much for this talk!

@RanjithVj404 3 жыл бұрын

Excellent presentation. Thanks for getting into implementation details!

@huhu5375 Жыл бұрын

Amazing talks! I learn a lot from this video. "Ask client to close" is really brilliant. Randomized the connection time is also very impressive. I have seen random backoff algorithm, don't know it can also be used in this scenario.

@lalanashree3962 3 ай бұрын

One of the best 'Notification Design videos' seen so far.

@km2411_ 3 жыл бұрын

Really neat presentation with much informative content.

@audi88 4 жыл бұрын

This talk is so good. Especially the mention of benchmarking numbers. m4.large ~ 8G,2vCPU = 84000 concurrent connections. ❤️

@mat822 4 жыл бұрын

yes it is very good talk but it not clear what is the throughput of the system with 84K clients, I guess it is very low if he was saying the CPU was barely used.

@faizhalde2836 3 жыл бұрын

@@mat822 the system does look io intensive (mostly network calls) so low cpu makes sense i think

@helloworld7313 2 жыл бұрын

@@mat822 125 million users, 1 push notification per day, each notification takes 1KB 125000000*1024/86400 < 2MB/s negligible throughput. Of course they kill connections periodically, but still very low throughput system.

@viveksai9353 3 жыл бұрын

Every bit of applause deserved for such a verbose explaination.

@AbhijeetJadhav24 2 жыл бұрын

Super comprehensive and very inspirational! Thank you.

@sasaa4908 3 жыл бұрын

Thank you so much for this talk !! very well explained ...

@PankajKumar-vi4tn 3 жыл бұрын

Very good talk. I also liked some of the questions in the end.

@pothiq 5 жыл бұрын

It's truly comprehensive. Thanks for the nice presentation in a very understandable way.

@amitbaijal421 4 жыл бұрын

Great presentation.

@8Trails50 4 жыл бұрын

This is an insanely good talk.

@at_tap 3 жыл бұрын

Extremely well conducted video, very informative and explained without any wrinkles. Kudos!!

@Dipesh_Sol 11 ай бұрын

Reminds me of backpressure, ofc not the same here.

@stillyi 3 жыл бұрын

Thank you! Very informative presentation.

@pragmaticsoftwareengineer7965 2 жыл бұрын

Brilliant Talk.. Learned so much.. Thanks Susheel.

@jmitesh01 3 жыл бұрын

nit pick here, but how does sharding for availability help in push registry feature checklist? Its because it protects by only some portion of connection server goes down?

@madeeshafernando8496 3 жыл бұрын

wow, what a great talk, explains really well!!

@codetolive27 2 жыл бұрын

Excellent presentation!! Lots to learn

@wyjiaonju 3 жыл бұрын

Great talk! Very inspirational!

@unmeshchougule5666 Жыл бұрын

Question : when you say client opens connection and stays connected to that server, wouldn't it talk to load balancer and not the actual server here? So even if you deploy new server behind that load balancer there won't be any issue of the connection closing and re-opening as you mentioned? Please shed some light if I am missing something here.

@attention_shopping 2 жыл бұрын

what a great talk. so dense, no fluff

@deepakkumarnd 3 жыл бұрын

Great talk, very detailed

@allanvalooran6604 3 жыл бұрын

Great Talk

@dhrumilparmar9294 3 жыл бұрын

Awesome talk! Enjoyed it.

@praveenX Жыл бұрын

Just Amazing! 👏

@unmeshchougule5666 Жыл бұрын

great talk, thank you!

@lukeyd13 2 жыл бұрын

What an amazing speaker this guy is

@ankitjindal7059 2 жыл бұрын

Really thought through presentation

@VinayYadav-xy7dk 2 жыл бұрын

Brilliant!!

@NK-ju6ns 2 жыл бұрын

Neat presentation and insightful.

@VishalThakur-wo1vx 5 ай бұрын

Love this talk

@conquerorsanthosh 2 жыл бұрын

Such an awesome content , thankyou

@hyper.charged_ 3 жыл бұрын

Excellent

@BHARATKUMAR-le6eq 2 жыл бұрын

I think some confusion at ELB. ELB operates at Layer 4 which means at the TCP layer already.

@PratikNandoskar 5 жыл бұрын

Very Good. thanks for sharing.

@mukeshprajapati9642 4 ай бұрын

Really good explanation. Literally clapped at the end :)

@hutofrock 2 жыл бұрын

Excellent presentation with enough in-depth details and nice insights!

@himanshuupadhyay6749 Жыл бұрын

Very nice presentation

@renon3359 4 ай бұрын

TCP TIMED WAIT avoidance was brilliant

@gharatmayuresh15 3 жыл бұрын

Excellent presentation !!!

@smonkey001 3 жыл бұрын

How can they "push messaging" to Android with WebSocket while Google simply banned any push notification methods but FCM?

@lahmerilyas4430 Жыл бұрын

This push mechanism is for users who are using the app. FCM is used for both forground/background usage.

@BHARATKUMAR-le6eq 2 жыл бұрын

I have only one request why the client depends on the server. I mean why this client-server mapping. What if the server is down then we need to migrate all the client-specific servers to a new server which is costly and may create issues like thundering. It's not we should make the server stateless with client requests and maybe only we should store client information in the push registry?? and when push notifications just randomly pick the server and send a message to the client id.

@TheNikhilbhoyar 3 жыл бұрын

what is worse than thundering herd? its recurring thundering herd

@ridhwaans 3 жыл бұрын

what is the difference between push vs kafka messages/ message queues?

@maximecaron3133 2 жыл бұрын

with push client subscribe to a small set of keys( movie name …). while with kafka there is a single log and client need to read all message that have been written to the log