You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@beam.apache.org by "Luke Cwik (Jira)" <ji...@apache.org> on 2020/04/08 20:33:00 UTC
[jira] [Commented] (BEAM-9624) Combine operation should support
only converting to accumulators
[ https://issues.apache.org/jira/browse/BEAM-9624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17078685#comment-17078685 ]
Luke Cwik commented on BEAM-9624:
---------------------------------
Outstanding work is to add a unit test for Python.
> Combine operation should support only converting to accumulators
> ----------------------------------------------------------------
>
> Key: BEAM-9624
> URL: https://issues.apache.org/jira/browse/BEAM-9624
> Project: Beam
> Issue Type: Improvement
> Components: runner-core
> Reporter: Andrew Crites
> Assignee: Andrew Crites
> Priority: Major
> Time Spent: 2h 40m
> Remaining Estimate: 0h
>
> For streaming pipelines, we want to be able to lift the combiner into the MergeBuckets without having to also do a PartialGroupByKey before the shuffle. We don't want to do the PGBK since it could cause non-deterministic results when used with some triggers.
> We propose adding a new URN for doing just the convert to accumulators step and adding support for it in Java/Python/Go.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)