kennknowles commented on issue #24655: URL: https://github.com/apache/beam/issues/24655#issuecomment-1372435487
Yes, I agree with most of this. The runner makes all fusion decisions and the GreedyPipelineFuser (and all of runners-core and runners-core-construction) is utility code provided to make it easier to build a runner. But it is still not required for fusion to be broken at the boundary of `@RequiresStableInput`. You need to do an analysis to determine which PCollections are stable. Stable input -> deterministic transform -> stable output. It would probably be quite wasteful to always break fusion at the `@RequiresStableInput`. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
