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https://issues.apache.org/jira/browse/BEAM-12949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Thevessen updated BEAM-12949:
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    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.

  was:
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.


> DatastoreIO: Fix template compatibility
> ---------------------------------------
>
>                 Key: BEAM-12949
>                 URL: https://issues.apache.org/jira/browse/BEAM-12949
>             Project: Beam
>          Issue Type: Improvement
>          Components: io-java-gcp
>            Reporter: Daniel Thevessen
>            Assignee: Daniel Thevessen
>            Priority: P2
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> 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.



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