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https://issues.apache.org/jira/browse/KAFKA-5212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16214524#comment-16214524
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Richard Yu edited comment on KAFKA-5212 at 10/23/17 2:43 AM:
-------------------------------------------------------------

There appears to be an infinite loop in the test (skippingHeartbeats). As time 
progresses towards endTime, the prepareHeartbeatResponse() method will always 
return a false.



was (Author: yohan123):
There appears to be an infinite loop in the code (skippingHeartbeats). As time 
progresses towards endTime, the prepareHeartbeatResponse() method will always 
return a false.


> Consumer ListOffsets request can starve group heartbeats
> --------------------------------------------------------
>
>                 Key: KAFKA-5212
>                 URL: https://issues.apache.org/jira/browse/KAFKA-5212
>             Project: Kafka
>          Issue Type: Bug
>          Components: consumer
>            Reporter: Jason Gustafson
>            Assignee: Richard Yu
>             Fix For: 1.1.0, 1.0.1
>
>         Attachments: 5212.patch
>
>
> The consumer is not able to send heartbeats while it is awaiting a 
> ListOffsets response. Typically this is not a problem because ListOffsets 
> requests are handled quickly, but in the worst case if the request takes 
> longer than the session timeout, the consumer will fall out of the group.



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