[jira] [Updated] (BEAM-847) Make DelegatingAggregator creation nonblocking

["Daniel Halperin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Daniel Halperin updated BEAM-847:
---------------------------------
    Issue Type: Improvement  (was: Bug)

> Make DelegatingAggregator creation nonblocking
> ----------------------------------------------
>
>                 Key: BEAM-847
>                 URL: https://issues.apache.org/jira/browse/BEAM-847
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-core, runner-dataflow, runner-direct, runner-flink, sdk-java-core
>            Reporter: Thomas Groh
>            Assignee: Thomas Groh
>
> This normally would not be a problem, as users are expected to create Aggregators in a non-performance-sensitive fashion. {{GroupAlsoByWindowViaWindowSet}} also creates an {{Aggregator}}, and this is a runner-provided {{DoFn}} (and may be created some arbitrary number of times on workers); this call should not use a shared resource.
> As the IDs of an {{Aggregator}} are used only to ensure that an {{Aggregator}} has a consistent identity across a serialization boundary, used in the {{AggregatorPipelineExtractor}}, these can be less random so long as they remain mostly unique.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)