[jira] [Closed] (BEAM-3087) Extend lock scope in Flink UnboundedSourceWrapper

[Aljoscha Krettek (JIRA)]

     [ 
https://issues.apache.org/jira/browse/BEAM-3087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Aljoscha Krettek closed BEAM-3087.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 2.5.0

> Extend lock scope in Flink UnboundedSourceWrapper
> -------------------------------------------------
>
>                 Key: BEAM-3087
>                 URL: https://issues.apache.org/jira/browse/BEAM-3087
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-flink
>            Reporter: Aljoscha Krettek
>            Assignee: Grzegorz Kołakowski
>            Priority: Major
>             Fix For: 2.5.0
>
>
> In {{UnboundedSourceWrapper}} the lock scope is not big enough: we 
> synchronise in {{emitElement()}} but should instead synchronise inside the 
> reader loop in {{run()}} because the {{Source}} interface does not allow 
> concurrent calls.



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