[jira] [Updated] (KAFKA-6456) Improve JavaDoc of SourceTask#poll() to discourage indefinite blocking

["Gunnar Morling (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-6456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gunnar Morling updated KAFKA-6456:
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    Summary: Improve JavaDoc of SourceTask#poll() to discourage indefinite blocking  (was: Improve JavaDoc of SourceTask#poll())

> Improve JavaDoc of SourceTask#poll() to discourage indefinite blocking
> ----------------------------------------------------------------------
>
>                 Key: KAFKA-6456
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6456
>             Project: Kafka
>          Issue Type: Improvement
>          Components: KafkaConnect
>    Affects Versions: 1.0.0
>            Reporter: Gunnar Morling
>            Priority: Major
>
> The docs of {{poll()}} currently say "This method should block if no data is currently available". This causes the task from transitioning to PAUSED state, if there's no data available for a longer period of time. I'd therefore suggest to reword like this:
> {quote}
> This method should block if no data is currently available but return control to Kafka Connect periodically (by returning null).
> {quote}



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