[jira] [Commented] (KAFKA-1893) Allow regex subscriptions in the new consumer

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-1893?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14739513#comment-14739513 ] 

ASF GitHub Bot commented on KAFKA-1893:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/kafka/pull/128


> Allow regex subscriptions in the new consumer
> ---------------------------------------------
>
>                 Key: KAFKA-1893
>                 URL: https://issues.apache.org/jira/browse/KAFKA-1893
>             Project: Kafka
>          Issue Type: Sub-task
>          Components: consumer
>            Reporter: Jay Kreps
>            Assignee: Ashish K Singh
>            Priority: Blocker
>             Fix For: 0.8.3
>
>
> The consumer needs to handle subscribing to regular expressions. Presumably this would be done as a new api,
> {code}
>   void subscribe(java.util.regex.Pattern pattern);
> {code}
> Some questions/thoughts to work out:
>  - It should not be possible to mix pattern subscription with partition subscription.
>  - Is it allowable to mix this with normal topic subscriptions? Logically this is okay but a bit complex to implement.
>  - We need to ensure we regularly update the metadata and recheck our regexes against the metadata to update subscriptions for new topics that are created or old topics that are deleted.



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