Can we write Gateway in a Multi-Tenant Architecture other then q

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1

Hi All,

  Just wanted to know, Can we write our own gateway in a Multi-TenantArchitecture in another preferred language other than Q. 

  Found this reference:  https://code.kx.com/v2/wp/common_design_principles_for_kdb_gateways.pdf

  But example/design principles are preferably in Q.

Thanks and Regards,

 Pratap

2

This is possible if you implement q’s IPC protocol in your own implementation (or use c.java or other similar implementation of the protocol).

I managed to implement a gateway process in Java using Netty (https://netty.io/) as the basis some time ago. But there was quite a bit of work reverse engineering, as I didn’t use c.java or other existing Java implementation of the IPC protocol (had to implement it myself).

3

one could do a simple msg router, which doesn’t do much with the data (in terms of joins, data-types etc) - however, that would be quite limiting.

More recently, in v3.6, we added

https://code.kx.com/v2/kb/deferred-response/

which should help overcome some concerns about concurrency for gateway processes.