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https://issues.apache.org/jira/browse/STREAMS-311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14593907#comment-14593907
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ASF GitHub Bot commented on STREAMS-311:
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Github user asfgit closed the pull request at:
https://github.com/apache/incubator-streams/pull/217
> TwitterUserInformationProvider stalls with > 20 items provided
> --------------------------------------------------------------
>
> Key: STREAMS-311
> URL: https://issues.apache.org/jira/browse/STREAMS-311
> Project: Streams
> Issue Type: Bug
> Reporter: Steve Blackmon
>
> The way parallelism is handled in TwitterUserInformationProvider can cause
> the provider to stall when more threads are created than the size of the
> execution service queue which is hard-coded to twenty.
> The size of the execution service queue should equal the number of threads to
> ensure that startStream() does not block trying to add more threads, because
> until startStream() completes the local runtime does not poll readCurrent().
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