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From "Tzu-Li (Gordon) Tai (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (FLINK-7195) FlinkKafkaConsumer should not respect fetched partitions to filter restored partition states
Date Fri, 28 Jul 2017 15:26:01 GMT

     [ https://issues.apache.org/jira/browse/FLINK-7195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tzu-Li (Gordon) Tai closed FLINK-7195.
--------------------------------------

> FlinkKafkaConsumer should not respect fetched partitions to filter restored partition
states
> --------------------------------------------------------------------------------------------
>
>                 Key: FLINK-7195
>                 URL: https://issues.apache.org/jira/browse/FLINK-7195
>             Project: Flink
>          Issue Type: Bug
>          Components: Kafka Connector
>    Affects Versions: 1.3.1
>            Reporter: Tzu-Li (Gordon) Tai
>            Assignee: Tzu-Li (Gordon) Tai
>            Priority: Blocker
>             Fix For: 1.3.2
>
>
> This issue is a re-appearance of FLINK-6006. On restore, we should not respect any fetched
partitions list from Kafka and perform any filtering of the restored partition states. There
are corner cases where, due to Kafka broker downtime, some partitions may be missing in the
fetched partition list. To be more precise, we actually should not require fetching partitions
on restore.
> We've stepped on our own foot again and reintroduced this bug in https://github.com/apache/flink/pull/3378/commits/ed68fedbe90db03823d75a020510ad3c344fa73e.
The previous test for this behavior was too implementation specific, and therefore the leak
in catching this on different internal implementations.
> We should have a proper unit test for this that does not rely on the internal implementations
and test only on public abstractions of {{FlinkKafkaConsumerBase}}.



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