You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@beam.apache.org by "Thomas Groh (JIRA)" <ji...@apache.org> on 2016/10/28 17:21:58 UTC
[jira] [Resolved] (BEAM-847) Make DelegatingAggregator creation
nonblocking
[ https://issues.apache.org/jira/browse/BEAM-847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Thomas Groh resolved BEAM-847.
------------------------------
Resolution: Fixed
Fix Version/s: 0.4.0-incubating
> 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
> Fix For: 0.4.0-incubating
>
>
> 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)