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From "Ashish K Singh (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-3879) KafkaConsumer with auto commit enabled gets stuck when killed after broker is dead
Date Mon, 20 Jun 2016 19:12:58 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-3879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ashish K Singh updated KAFKA-3879:
----------------------------------
    Affects Version/s: 0.10.0.0

> KafkaConsumer with auto commit enabled gets stuck when killed after broker is dead
> ----------------------------------------------------------------------------------
>
>                 Key: KAFKA-3879
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3879
>             Project: Kafka
>          Issue Type: Bug
>    Affects Versions: 0.10.0.0
>            Reporter: Ashish K Singh
>            Assignee: Ashish K Singh
>             Fix For: 0.10.0.1
>
>
> KafkaConsumer with auto commit enabled gets stuck when killed after broker is dead.
> * KafkaConsumer on close tries to close coordinator.
> * Coordinator, if auto commit is enabled, tries to commit offsets synchronously before
closing.
> * While trying to synchronously commit offsets, coordinator checks if coordinator is
alive by sending {{GroupCoordinatorRequest}}. As brokers are dead, this returns {{NoAvailableBrokersException}},
which is a retriable exception.
> * Coordinator ready check enters into an infinite loop as it keeps retrying to discover
group coordinator.



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