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https://issues.apache.org/jira/browse/KAFKA-3084?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15092396#comment-15092396
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ASF GitHub Bot commented on KAFKA-3084:
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Github user asfgit closed the pull request at:
https://github.com/apache/kafka/pull/744
> Topic existence checks in topic commands (create, alter, delete)
> ----------------------------------------------------------------
>
> Key: KAFKA-3084
> URL: https://issues.apache.org/jira/browse/KAFKA-3084
> Project: Kafka
> Issue Type: Improvement
> Reporter: Grant Henke
> Assignee: Grant Henke
> Fix For: 0.9.1.0
>
>
> In Kafka 0.9.0 error codes were added to the topic commands. However, often
> users only want to perform an action based on the existence of a topic. And
> they don't want to error if the topic does or does not exist.
> Adding if-exists option for the topic delete and alter commands and
> if-not-exists for the create command allows users to build scripts that can
> handle this expected state without error codes.
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