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https://issues.apache.org/jira/browse/KAFKA-524?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Joe Stein closed KAFKA-524.
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> Kafka Appender causes Log4j Deadlock
> ------------------------------------
>
> Key: KAFKA-524
> URL: https://issues.apache.org/jira/browse/KAFKA-524
> Project: Kafka
> Issue Type: Sub-task
> Affects Versions: 0.7.2
> Reporter: nicu marasoiu
> Assignee: David Arthur
> Labels: patch
> Fix For: 0.7.2
>
> Attachments:
> 0001-KAFKA-524-Defer-creating-Producer-in-log4j-appender.patch,
> 0001-KAFKA-524-Defer-creating-Producer-in-log4j-appender.patch
>
>
> If you remove all log4j.properties from classpath (and prvent any log4j
> intialization previous to the one which involves kafka appender), and put
> KAFKA appender on rootLogger, then, even if you exclude the KAFKA appender
> from logger.kafka and logger.org, you get a Log4j deadlock when zookeeper
> send thread tries to issue a LOG.info, and for that it locks the root
> category (as its correct category, say org, is not yet set up in log4j, who
> is still in activateOptions on kafka appender).
> please read comments on the parent and ask any questions to nmara...@adobe.com
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