[jira] [Comment Edited] (KAFKA-6408) Kafka MirrorMaker doesn't replicate messages when .* regex is used

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

    [ https://issues.apache.org/jira/browse/KAFKA-6408?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16307393#comment-16307393 ] 

Waleed Fateem edited comment on KAFKA-6408 at 1/1/18 10:06 AM:
---------------------------------------------------------------

The documentation is actually wrong and I created another JIRA to get that corrected:
https://issues.apache.org/jira/browse/KAFKA-6301

If you use * you'll see in the MirrorMaker's log that it starts up with a blank whitelist parameter as opposed to using .* which shows up correctly. 


was (Author: waleedfateem):
The documentation is actually wrong and I created another JIRA to get that corrected:
https://issues.apache.org/jira/browse/KAFKA-6301

If you use '*' you'll see in the MirrorMaker's log that it starts up with a blank whitelist parameter as opposed to using '.*' which shows up correctly. 

> Kafka MirrorMaker doesn't replicate messages when .* regex is used
> ------------------------------------------------------------------
>
>                 Key: KAFKA-6408
>                 URL: https://issues.apache.org/jira/browse/KAFKA-6408
>             Project: Kafka
>          Issue Type: Bug
>          Components: tools
>    Affects Versions: 0.11.0.0
>            Reporter: Waleed Fateem
>            Priority: Minor
>
> When using the regular expression .* for the whitelist parameter in Kafka MirrorMaker in order to mirror all topics, the MirrorMaker doesn't replicate any messages. I was then able to see messages flowing again and being replicated between the two Kafka clusters once I changed the whitelist configuration to use another regular expression, such as 'topic1 | topic2 | topic3' 



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