Thanks Jack!

I've tried that Slack link but it requires an account with a @apache email


On Thu, Jun 22, 2023 at 10:08 AM Jack McCluskey via user <
user@beam.apache.org> wrote:

> Hey Joey,
>
> The best resource to look at, at the moment, is likely Robert Burke's
> Prism runner that he is implementing (
> https://github.com/apache/beam/tree/master/sdks/go/pkg/beam/runners/prism).
> Runners are pretty complicated and there are a number of primitives that
> you need to have implemented on the runner side to get executing pipelines.
>
> The Slack has a link on the Beam Contact Us page
> <https://beam.apache.org/community/contact-us/>, and I'd highly recommend
> routing questions towards the developer mailing (d...@beam.apache.org)
> list rather than the user one for runner implementation things.
>
> Thanks,
>
> Jack McCluskey
>
> On Thu, Jun 22, 2023 at 8:40 AM Joey Tran <joey.t...@schrodinger.com>
> wrote:
>
>> Hi Beam community!
>>
>> I'm interested in trying to implement a runner with my company's
>> execution environment but I'm struggling to get started. I've read the docs
>> page
>> <https://beam.apache.org/contribute/runner-guide/#testing-your-runner>
>> on implementing a runner but it's quite high level. Anyone have any
>> concrete suggestions on getting started?
>>
>> I've started by cloning and running the hello world example
>> <https://github.com/apache/beam-starter-python>. I've then subclassed `
>> PipelineRunner
>> <https://github.com/apache/beam/blob/9d0fc05d0042c2bb75ded511497e1def8c218c33/sdks/python/apache_beam/runners/runner.py#L103>`
>> to create my own custom runner but at this point I'm a bit stuck. My custom
>> runner just looks like
>>
>> class CustomRunner(runner.PipelineRunner):
>>     def run_pipeline(self, pipeline,
>>                      options):
>>         self.visit_transforms(pipeline, options)
>>
>> And when using it I get an error about not having implemented "Impulse"
>>
>> NotImplementedError: Execution of [<Impulse(PTransform) label=[Impulse]>]
>> not implemented in runner <my_app.app.CustomRunner object at 0x135d9ff40>.
>>
>> Am I going about this the right way? Are there tests I can run my custom
>> runner against to validate it beyond just running the hello world example?
>> I'm finding myself just digging through the beam source to try to piece
>> together how a runner works and I'm struggling to get a foothold. Any
>> guidance would be greatly appreciated, especially if anyone has any
>> experience implementing their own python runner.
>>
>> Thanks in advance! Also, could I get a Slack invite?
>> Cheers,
>> Joey
>>
>

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