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Date: Wed, 12 Sep 2012 13:17:08 +1100 (NCT)
From: "Jun Rao (JIRA)" <jira@apache.org>
To: kafka-dev@incubator.apache.org
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Subject: [jira] [Updated] (KAFKA-495) Handle topic names with "/" on Kafka
 server
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     [ https://issues.apache.org/jira/browse/KAFKA-495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jun Rao updated KAFKA-495:
--------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

Thanks for patch v3 for 0.8. Committed to 0.8.
                
> Handle topic names with "/" on Kafka server
> -------------------------------------------
>
>                 Key: KAFKA-495
>                 URL: https://issues.apache.org/jira/browse/KAFKA-495
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.7, 0.8
>            Reporter: Neha Narkhede
>            Assignee: Swapnil Ghike
>              Labels: bugs
>             Fix For: 0.8, 0.7.1
>
>         Attachments: kafka-495-v0.8.patch, kafka-495-v0.8-v2.patch, kafka-495-v0.8-v3.patch, kafka-495-v1.patch, kafka-495-v2.patch, kafka-495-v3.patch, kafka-495-v4.patch
>
>
> If a producer publishes data to topic "foo/foo", the Kafka server ends up creating an invalid directory structure on the server. This corrupts the zookeeper data structure for the topic - /brokers/topics/foo/foo. This leads to rebalancing failures on the consumer as well as errors on the zookeeper based producer. 
> We need to harden the invalid topic handling on the Kafka server side to avoid this.

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