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From "Jun Rao (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (KAFKA-197) Embedded consumer doesn't shut down if the server can't start
Date Mon, 05 Dec 2011 18:26:40 GMT

    [ https://issues.apache.org/jira/browse/KAFKA-197?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13162922#comment-13162922
] 

Jun Rao commented on KAFKA-197:
-------------------------------

The main reason that we moved away from writing to local log is to pick up the compression
support in the high level producer. Decoupling the embedded consumer from the broker may not
be a bad idea. There is one more service/process that one has to manage. However, it's probably
more flexible (to support things like consuming from multiple sources and plugging in logic
for consumer-side auditing) and is less intrusive to the core Kafka code.
                
> Embedded consumer doesn't shut down if the server can't start
> -------------------------------------------------------------
>
>                 Key: KAFKA-197
>                 URL: https://issues.apache.org/jira/browse/KAFKA-197
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.7
>            Reporter: Jun Rao
>             Fix For: 0.7.1
>
>         Attachments: KAFKA-197.patch
>
>
> If a broker embeds a consumer and the broker itself doesn't start (e.g., conflicting
broker id in ZK), the embedded consumer is still running. In this case, we should probably
shut down the embedded consumer too.
> To do this, we need to either throw an exception or return an error in KafkaServer.startup
and act accordingly in KafkaServerStartable.startup.

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