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https://issues.apache.org/jira/browse/FLINK-19245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17232411#comment-17232411
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Stephan Ewen commented on FLINK-19245:
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Fixed in 1.11.3 (release-1.11) via 406aa9f3f647568410ca0d9d27c475ce84a58ece
> Set default queue capacity for FLIP-27 source handover queue to 2
> -----------------------------------------------------------------
>
> Key: FLINK-19245
> URL: https://issues.apache.org/jira/browse/FLINK-19245
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / Common
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Major
> Fix For: 1.12.0, 1.11.3
>
>
> Based on initial investigation by [~jqin] a capacity value of two results in
> good queue throughput while still keeping the number of elements small.
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