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From "Erik van Oosten (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-6928) Kafka sink: default topic should not need to exist
Date Thu, 15 Jun 2017 08:31:01 GMT

     [ https://issues.apache.org/jira/browse/FLINK-6928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erik van Oosten updated FLINK-6928:
-----------------------------------
    Description: 
When using a Kafka sink, the defaultTopic needs to exist even when it is never used. It would
be nice if fetching partition information for the default topic would be delayed until the
moment a topic is actually used.

Cause: {{FlinkKafkaProducerBase.open}} fetches partition information for the default topic.

In addition, it would be nice if we could signal that the defaultTopic is not needed by passing
{{null}}. Currently, a value for the defaultTopic is required.

  was:
When using a Kafka sink, the defaultTopic needs to exist even when it is never used. It would
be nice if fetching partition information for the default topic would be delayed until the
moment a topic is actually used.

Cause: {{FlinkKafkaProducerBase.open}} fetches partition information for the default topic.

It would be nice if we could signal that the defaultTopic is not needed by passing {{null}}.
Currently, a value for the defaultTopic is required.


> Kafka sink: default topic should not need to exist
> --------------------------------------------------
>
>                 Key: FLINK-6928
>                 URL: https://issues.apache.org/jira/browse/FLINK-6928
>             Project: Flink
>          Issue Type: Bug
>          Components: Kafka Connector
>    Affects Versions: 1.3.0, 1.2.1
>            Reporter: Erik van Oosten
>
> When using a Kafka sink, the defaultTopic needs to exist even when it is never used.
It would be nice if fetching partition information for the default topic would be delayed
until the moment a topic is actually used.
> Cause: {{FlinkKafkaProducerBase.open}} fetches partition information for the default
topic.
> In addition, it would be nice if we could signal that the defaultTopic is not needed
by passing {{null}}. Currently, a value for the defaultTopic is required.



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