I think it makes a lot of sense to move it to the Beam web site. There's
already a good landing point:
https://beam.apache.org/contribute/runner-guide/
That page is a collection of advice for legacy-style runners on how to use
runners-core, etc, and just general stuff about how to write one,
The Beam Runner API doc needs a lot of updating to discuss impulse and SDF,
(and deprecate / remove Read): https://s.apache.org/beam-runner-api
It could also use examples from Go/Python code base.
Alternatively we could start to codify this information on the Apache Beam
website as the
Hi Ismael,
Impulse is a primitive necessary for the Portability world, where sources
do not exist. Impulse is the only possible root of the pipeline, it emits a
single empty byte array, and it's all DoFn's and SDF's from there. E.g.
when using Fn API, Read.from(BoundedSource) is translated into:
Fully agree.
I already started to take a look.
Regards
JB
On 18/05/2018 16:12, Ismaël Mejía wrote:
I have seen multiple mentions of 'Impulse' in JIRAs and some on other
discussions, but have not seen any document or concrete explanation on
what's Impulse and why we need it. This seems like an
I have seen multiple mentions of 'Impulse' in JIRAs and some on other
discussions, but have not seen any document or concrete explanation on
what's Impulse and why we need it. This seems like an internal
implementation detail but it is probably a good idea to explain it
somewhere (my excuses if