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https://issues.apache.org/jira/browse/KAFKA-232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185190#comment-13185190
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Jun Rao commented on KAFKA-232:
-------------------------------

We discussed in the mailing before about allowing the ZK-based consumer to 
consume from an arbitrary offset during startup time. Here is the main 
complexity. Multiple consumers in the same group can consume a topic jointly. 
When they start up, which consumer sets the offset for which partitions? How do 
we prevent 2 consumers from setting the offset for the same partition?
                
> ConsumerConnector has no access to "getOffsetsBefore" 
> ------------------------------------------------------
>
>                 Key: KAFKA-232
>                 URL: https://issues.apache.org/jira/browse/KAFKA-232
>             Project: Kafka
>          Issue Type: New Feature
>            Reporter: Edward Capriolo
>            Priority: Minor
>
> kafka.javaapi.SimpleConsumer has "getOffsetsBefore". I would like this 
> ability in KafkaMessageStream or in ConsumerConnector. In this way clients 
> can access their current position.

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