[jira] [Commented] (KAFKA-9914) Mirror Maker 2 creates heartbeats kafka topics recursively

["victor (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KAFKA-9914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17106186#comment-17106186 ] 

victor commented on KAFKA-9914:
-------------------------------

Do you name kafka for both clusters at the same time?

As follow:

mm2-1.properties
{color:#FF0000}kafka.bootstrap.servers{color} = aa.com:9092

mm2-2.properties
{color:#FF0000}kafka.bootstrap.servers{color} = bb.com:9092

> Mirror Maker 2 creates heartbeats kafka topics recursively
> ----------------------------------------------------------
>
>                 Key: KAFKA-9914
>                 URL: https://issues.apache.org/jira/browse/KAFKA-9914
>             Project: Kafka
>          Issue Type: Bug
>          Components: mirrormaker
>    Affects Versions: 2.0.0
>            Reporter: azher khan
>            Priority: Major
>
> Hi Team,
> I configured Mirror Maker 2 to run on a Pod configuring the Kafka brokers in our environments marking '10.X.X.YY' Kafka broker as primary and '10.X.Y.XY' as backup.
> +*Mirror Maker mm2.properties*+ 
> {code:java}
> clusters=kafka,backup
> kafka.bootstrap.servers=10.X.X.YY:9092
> backup.bootstrap.servers=10.X.Y.XY:9092
> kafka->backup.enabled=true
> kafka->backup.topics=az.*
> backup->kafka.enabled=false
> sync.topic.acls.enabled=true
> {code}
>  
> I was able to run Mirror Maker 2 successfully and was also able to take backup of the identified topics (starting with 'az').
>  
> However I could see many kafka topics with the suffix 'heartbeats' created in recursion (See below the list of topics with 'kafka.*.heartbeats'). This could be because i triggered the 'connect-mirror-maker.sh' several times to test backing up other topics
>  
> I have 2 queries
>  # How to avoid having 'kafka.*.heartbeats' topic being created using Mirror Maker 2
>  # Once Mirror Maker 2 has backed up a topic say 'azherf1test' . What is the best way to rollback changes made by Mirror Maker (ie delete all the topics created by Mirror Maker 'kafka.azherf1test' and supporting topics) ensuring the stability of existing/source topics and Kafka broker.
> We are testing Mirror Maker and want to ensure we are able to roll back the changes without affecting the Kafka topics/brokers)
> +*Kafka Topics list output:*+
> {code:java}
> azherf1test
> heartbeats
> kafka-client-topic
> mm2-configs.backup.internal
> mm2-configs.kafka.internal
> mm2-offset-syncs.backup.internal
> mm2-offsets.backup.internal
> mm2-offsets.kafka.internal
> mm2-status.backup.internal
> mm2-status.kafka.internal
> kafka.azherf1test
> kafka.checkpoints.internal
> kafka.heartbeats
> kafka.kafka.heartbeats
> kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats
> kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.kafka.heartbeats{code}
>  



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