[BEAM-12949] DatastoreIO: Fix template compatibility

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Fix Version/s: 2.34.0
• Component/s: io-java-gcp
• Assignee: Daniel Thevessen
• Reporter: Daniel Thevessen
• Created: 23/Sep/21 19:36
• Updated: 06/Oct/21 21:50
• Resolved: 06/Oct/21 21:50

Description

Datastore has a few classic Dataflow templates that rely on being able to provide all parameters at runtime.

The newly introduced `hintNumWorkers` parameter needs to be switched to a `ValueProvider` to make that compatible for adjusting parameters. In addition, the `firstInstant` object should not be serialized into the template itself, as that freezes the start point for weeks at a time.

Issue Links

• links to: GitHub Pull Request #15569