Hi Sagar, Thanks for reading through my proposal.
While the 2 new methods were originally intended for the recursive use-case, they could also be used as an alternative means of wiring two different KStreams together. The main reason I didn't document this in the KIP is that using the API for this doesn't bring anything new to the table: it's just an alternative form of something that already exists. If you believe it would be helpful, I can document this in more detail. I can re-orient the KIP around the new methods themselves, but I felt there was more value in the KIP emphasizing the new functionality and algorithms that they enable. What additional context would you like to see in the KIP? Some more examples of recursive algorithms that would benefit? A more concrete example than generic graph traversal? Something else? Regards, Nick Telford On Fri, 5 Aug 2022 at 11:02, Sagar <sagarmeansoc...@gmail.com> wrote: > Hey Nick, > > Thanks for the KIP. This seems like a great addition. However, just > wondering if the 2 new methods that you plan to add are meant only for > streaming recursion? I would imagine they could be repurposed for other use > cases as well? If yes, then probably the KIP should revolve around the > addition of adding these methods which would btw also support streaming > recursion. IMHO adding 2 new methods just for streaming recursion seems > slightly odd to me. > > Also, pardon my ignorance here, but I don't have much insight into > streaming recursion. You can add some more context to it. > > Thanks! > Sagar. > > > > > On Tue, Jul 26, 2022 at 8:46 PM Nick Telford <nick.telf...@gmail.com> > wrote: > > > Hi everyone, > > > > URL: > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-857%3A+Streaming+recursion+in+Kafka+Streams > > > > Here's a KIP for extending the Streams DSL API to support "streaming > > recursion". See the Motivation section for details on what I mean by > this, > > along with an example of recursively counting nodes in a graph. > > > > I haven't included changes for the PAPI, mostly because I don't use it, > so > > I'm not as familiar with the idioms there. If you can think of a good > > analogue for a new PAPI method, I'm happy to include it in the KIP. > > > > Regards, > > > > Nick Telford > > >
