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From "Cody Koeninger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-20036) impossible to read a whole kafka topic using kafka 0.10 and spark 2.0.0
Date Tue, 18 Apr 2017 21:05:41 GMT

    [ https://issues.apache.org/jira/browse/SPARK-20036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15973507#comment-15973507
] 

Cody Koeninger commented on SPARK-20036:
----------------------------------------

I'll submit a PR to add a note to the docs about this.

> impossible to read a whole kafka topic using kafka 0.10 and spark 2.0.0 
> ------------------------------------------------------------------------
>
>                 Key: SPARK-20036
>                 URL: https://issues.apache.org/jira/browse/SPARK-20036
>             Project: Spark
>          Issue Type: Bug
>          Components: Input/Output
>    Affects Versions: 2.0.0
>            Reporter: Daniel Nuriyev
>         Attachments: Main.java, pom.xml
>
>
> I use kafka 0.10.1 and java code with the following dependencies:
> <dependency>
>             <groupId>org.apache.kafka</groupId>
>             <artifactId>kafka_2.11</artifactId>
>             <version>0.10.1.1</version>
>         </dependency>
>         <dependency>
>             <groupId>org.apache.kafka</groupId>
>             <artifactId>kafka-clients</artifactId>
>             <version>0.10.1.1</version>
>         </dependency>
>         <dependency>
>             <groupId>org.apache.spark</groupId>
>             <artifactId>spark-streaming_2.11</artifactId>
>             <version>2.0.0</version>
>         </dependency>
>         <dependency>
>             <groupId>org.apache.spark</groupId>
>             <artifactId>spark-streaming-kafka-0-10_2.11</artifactId>
>             <version>2.0.0</version>
>         </dependency>
> The code tries to read the whole topic using:
> kafkaParams.put("auto.offset.reset", "earliest");
> Using 5 second batches:
> jssc = new JavaStreamingContext(conf, Durations.seconds(5));
> Each batch returns empty.
> I debugged the code I noticed that KafkaUtils.fixKafkaParams is called that overrides
"earliest" with "none".
> Whether this is related or not, when I used kafka 0.8 on the client with kafka 0.10.1
on the server, I could read the whole topic.



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