Http Long Polling，Websockets，AJAX轮询，服务器端事件

在本视频中，我讨论了系统设计中使用的关键轮询机制。我已经通过示例讨论了以下主题。

长轮询
网络套接字，
AJAX轮询，
服务器端事件

这是常见的系统设计面试问题之一。这也将帮助您决定在系统设计中选择哪种轮询。

这是whatsappsystem设计的视频https://youtu.be/oOU4bdyLqJM，它讨论了websockets。

#reachgoals
＃系统设计。

Sayantan Ray说道：

2020年4月16日上午5:56

Good pointers to start!!!
Abc Cancun说道：

2020年4月16日上午5:56

Great short video on web communication! Probably should cover webhooks as well
Adroit Aayush说道：

2020年4月16日上午5:56

itna harbadi kis baat ka bhai
accha se to samjha dete
Hari polnati说道：

2020年4月16日上午5:56

Hi Sir ,

I found your channel luckily ?.

Your videos are amazing ?? ??

Please continue this and
if possible please do real time coding example on distributed transaction(Saga pattern )

I heard Axon framework implemented on top of saga for Distributed transaction and also
Paxos framework from google or 2pc , 3pc commits also we can achieve this

Please give me some clarity on this about the differences

Thank you ?
learn spring说道：

2020年4月16日上午5:56

I would like to know about the database design of microservice. The scenario is given below
Microservice A is using mysql database. If I am creating multiple instance of microservice A

1) Each microservice A should point to the same database (common database for all instances) or

2) Each microservice A points to its own private database

If each microservice A instance points to its own private database how to sync the data of each instance? Can you please explain the best way.

can you make a video about it?

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