Re: Julia SDK for Stateful Functions

[Igal Shilman <ig...@ververica.com>]

Hi Tom!

I'm very happy to see this! and would be very happy to help out!
We can continue to conversation over here, and in addition we can setup a
call,
Where we can go over some of your questions.

Regarding the specific question about the "incomplete context”.
You are absolutely right, the remote SDK is expected to look for unknown
states
and reply with the specification of these states.

In the current version, it is expected to see a bounded number of these
messages in a row, but after
the initialization phase you are not expected to see them anymore. We will
be working on a canary requests
that will reduce the number of these messages soon.

All the best,
Igal.


On Sat, Jul 31, 2021 at 5:30 PM Tom Breloff <to...@breloff.com> wrote:

> Hi all. I’ve been working on an Stateful Functions SDK for Julia.  I think
> it’s pretty close to working, except I’m running into a bit of confusion
> around the type expectations around the storage mechanism.
>
> Looking through the python SDK, it seems like my req/rep handler should
> look for missing persisted state objects in the ToFunction and then reply
> with an “incomplete context”. I do this, but then the subsequent
> ToFunctions are still missing the PersistedValues.
>
> Is there an assumption in the statefun backend about what types are allowed
> in the storage? Or anything else that may cause what I’m seeing?
>
> Also if there’s anyone willing to help work on this project with me,
> please let me know! The repo:
>
> https://github.com/tbreloff/StateFun.jl
>
> Best,
> Tom
>