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From "Matthias J. Sax (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KAFKA-4476) Kafka Streams gets stuck if metadata is missing
Date Sat, 03 Dec 2016 09:25:58 GMT

     [ https://issues.apache.org/jira/browse/KAFKA-4476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Matthias J. Sax updated KAFKA-4476:
-----------------------------------
    Status: Patch Available  (was: In Progress)

> Kafka Streams gets stuck if metadata is missing
> -----------------------------------------------
>
>                 Key: KAFKA-4476
>                 URL: https://issues.apache.org/jira/browse/KAFKA-4476
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>            Reporter: Matthias J. Sax
>            Assignee: Matthias J. Sax
>            Priority: Critical
>
> When a Kafka Streams application gets started for the first time, it can happen that
some topic metadata is missing when {{StreamPartitionAssigner#assign()}} is called on the
group leader instance. This can result in an infinite loop within {{StreamPartitionAssigner#assign()}}.
This issue was detected by {{ResetIntegrationTest}} that does have a transient timeout failure
(c.f. https://issues.apache.org/jira/browse/KAFKA-4058 -- this issue was re-opened multiple
times as the problem was expected to be in the test -- however, that is not the case).



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