Design Stock Server Application in C++

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Design Stock Server Application in C++

[Queston asked in ML Interview]

Design an server/application which handle multiple incoming stock information ( stock symbol and values ) Server need to store the information in some cache ( need to design the data structure ), There are multiple client connected to server using tcp/ip socket. They will subscribe to particular request say stock symbol XYZ , and may be for more then one. As and when there is change the stock symbol server should broadcast the information to subscribed client. If tcp/ip write failed, server should handle the unregistration of the client.

What various data structures will be used and how threading model will be ?

Sounds to me like a n-tier messaging kind of scenario have a look at this pubsub,

anijhaw 2010-03-31 17:50:38

will this model scale like more than 10000 of requests 1 second

Avinash 2010-03-31 17:53:10

write it and see.

KevinDTimm 2010-03-31 18:07:53

@Avinash it is used in major stock exchanges and major trading systems, It is the basis for most of the message brokers including JMS, Apache Active MQ, and I dont know for sure but twitter seems to be based on a similar paradigmbut yes write it and see :)

anijhaw 2010-03-31 21:17:19

anijhaw, the link you have given says literally this `scalability for pub/sub products under high load in large deployments is very much a research challenge`. So it is not quite obvious how good this approach scales.

skwllsp 2010-04-20 11:02:13

@Skwllsp, if you scroll down the page you would see the part where it says Middleware implementing pub/sub, almost all of the industry standard message broker systems implement this protocol but yes it isnt simple :)

anijhaw 2010-04-20 13:04:44

ansaurus

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Design Stock Server Application in C++

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