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From "Scott Wegner (JIRA)" <>
Subject [jira] [Closed] (BEAM-575) "Latest String" Aggregator
Date Thu, 29 Sep 2016 21:53:21 GMT


Scott Wegner closed BEAM-575.
       Resolution: Fixed
    Fix Version/s: 0.3.0-incubating

> "Latest String" Aggregator
> --------------------------
>                 Key: BEAM-575
>                 URL:
>             Project: Beam
>          Issue Type: New Feature
>          Components: sdk-java-core
>            Reporter: Scott Wegner
>            Assignee: Scott Wegner
>             Fix For: 0.3.0-incubating
> Beam SDK recently gained support for "display data", which is construction-time metadata
about a pipeline. Display data is limited in that it doesn't provide a way to publish runtime
> Aggregators are the current method for pipelines to publish runtime metadata, but currently
focuses on counter-type metadata. It would be valuable to expand the support for dynamically-computed
properties like "pub-sub subscription id" or "sink export job status". This would fit nicely
into the aggregators API by providing a "Latest" combiner with String-typed data.

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