Reproduction Help: Cache data

[ptx9363]

I'm a beginnner for DSP and RTB and i'm trying to construct this bidder system. After successfully compiling the code, i can't running the examples as following:

~/rapid-bidder$ ./Debug/bidders/http_bidder --config etc/config.cfg

10:48:06.365672: <error> could not open file data/ads exiting...

I have tried mkdir the data folder and created an empty 'ads' file, yet the http_bidder still can not response correctlly. I would appreciate it if the cache data(or format) can be published, Looking forward for your help, thanks very much.

[venediktov]

hi ptx9363 , presumably it's your ads we did not provide those flat text files with this model project.
You can look at examples how we generate mock files while building vanilla-rtb examples
https://github.com/venediktov/vanilla-rtb/blob/master/examples/bidder/CMakeLists.txt#L45
In vanilla-rtb examples we have python sample data generator .
In the real world you normally keep this data in Database or other central store .
The assumption is that you have complete campaign management system and you have your data in database.
You pull the data from the database into each machine's stack , the data is identical on each machine
for simple http-bidder , however for multi-bidder when you run 1M+ campaigns you can segregate / segment it therefore
each bidder maybe bidding only on the segment of clients. Multi-bidder is an afterthought ... for small
shops not very useful .

[venediktov]

Ideally your system will have campaign management system with UI and DB .
Our loaders is a good example how data can be pushed from text files into the IPC cache used by DSP
for campaign selection by bidder. There is a million ways to implement it. One way is

• loader can become an agent running on each machine
• The file gets dropped to network mounted drive and loader picks it up and reloads IPC cache on the machine it runs.

Please refer to vanilla-rtb repository and try building examples there, it builds automatically
but it is only a framework with examples.
I hope it helps.
Vlad.