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https://issues.apache.org/jira/browse/KAFKA-3177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Gustafson updated KAFKA-3177:
-----------------------------------
Fix Version/s: (was: 0.10.2.0)
0.10.3.0
> Kafka consumer can hang when position() is called on a non-existing partition.
> ------------------------------------------------------------------------------
>
> Key: KAFKA-3177
> URL: https://issues.apache.org/jira/browse/KAFKA-3177
> Project: Kafka
> Issue Type: Bug
> Components: clients
> Affects Versions: 0.9.0.0
> Reporter: Jiangjie Qin
> Assignee: Jason Gustafson
> Priority: Critical
> Fix For: 0.10.3.0
>
>
> This can be easily reproduced as following:
> {code}
> {
> ...
> consumer.assign(SomeNonExsitingTopicParition);
> consumer.position();
> ...
> }
> {code}
> It seems when position is called we will try to do the following:
> 1. Fetch committed offsets.
> 2. If there is no committed offsets, try to reset offset using reset
> strategy. in sendListOffsetRequest(), if the consumer does not know the
> TopicPartition, it will refresh its metadata and retry. In this case, because
> the partition does not exist, we fall in to the infinite loop of refreshing
> topic metadata.
> Another orthogonal issue is that if the topic in the above code piece does
> not exist, position() call will actually create the topic due to the fact
> that currently topic metadata request could automatically create the topic.
> This is a known separate issue.
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