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From "Igal Shilman (Jira)" <j...@apache.org>
Subject [jira] [Assigned] (FLINK-22389) Expose Message Batches to SDKs
Date Thu, 20 May 2021 08:52:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-22389?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Igal Shilman reassigned FLINK-22389:

    Assignee: Igal Shilman

> Expose Message Batches to SDKs
> ------------------------------
>                 Key: FLINK-22389
>                 URL: https://issues.apache.org/jira/browse/FLINK-22389
>             Project: Flink
>          Issue Type: New Feature
>          Components: Stateful Functions
>            Reporter: Konstantin Knauf
>            Assignee: Igal Shilman
>            Priority: Major
>             Fix For: statefun-3.1.0
> Stateful Functions always invokes a functions with a batch of messages. Under normal
operations the batch size=1 (no batching). 
> If a function is slow and backpressure arises, the batch size grows, though. From an
SDK perspective, this batching is not visible. The function is always invoked with a single
message. This makes it impossible to efficiently evaluate the whole batch at once (e.g. with
> This issue was requested in http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Flink-Statefun-Python-Batch-tp43022.html.

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