[jira] [Assigned] (KAFKA-4351) Topic regex behavioral change with MirrorMaker new consumer

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

     [ https://issues.apache.org/jira/browse/KAFKA-4351?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

huxi reassigned KAFKA-4351:
---------------------------

    Assignee: huxi

> Topic regex behavioral change with MirrorMaker new consumer
> -----------------------------------------------------------
>
>                 Key: KAFKA-4351
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4351
>             Project: Kafka
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 0.9.0.1
>            Reporter: Dustin Cote
>            Assignee: huxi
>            Priority: Minor
>
> There is a behavioral change when you use MirrorMaker with the new consumer versus the old consumer with respect to regex parsing of the input topic list.  If one combines a regex with a comma separated list for the topic list with old consumer implementation of MirrorMaker, it works ok.  Example:
> {code}
> --whitelist '.+(my|mine),topic,anothertopic'
> {code}
> If you pass this in with the new consumer implementation, no topics are found.  The workaround is to use something like:
> {code}
> --whitelist '.+(my|mine)|topic|anothertopic'
> {code}
> We should make an effort to be consistent between the two implementations as it's a bit surprising when migrating. I've verified the problem exists on 0.9.0.1 but I don't see at first any fix to the problem in later versions.



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