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https://issues.apache.org/jira/browse/FLINK-1239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14214012#comment-14214012
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Márton Balassi commented on FLINK-1239:
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Fix for most cases via
https://git-wip-us.apache.org/repos/asf?p=incubator-flink.git;a=commit;h=d7d72383734b932810b86e084eaa55efe48a0d4b
Due to that the issue is no longer considered critical. Further check is
required.
> Fix iteration example getting stuck with large input
> ----------------------------------------------------
>
> Key: FLINK-1239
> URL: https://issues.apache.org/jira/browse/FLINK-1239
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Reporter: Gábor Hermann
> Assignee: Gábor Hermann
>
> When running the streaming iteration example with buffer timeout set to 0
> (meaning the StreamRecorWriter gets flushed after every emit in every task),
> the iteration gets stuck at flushing the output after emitting a record. This
> happens only on larger number of inputs (eg. 1000 record to iterate on).
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