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From "Ambud Sharma (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-21378) Spark Poll timeout when specific offsets are passed
Date Tue, 11 Jul 2017 22:35:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-21378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ambud Sharma updated SPARK-21378:
---------------------------------
    Description: 
Kafka direct stream fails with poll timeout:

{code:java}
JavaInputDStream<ConsumerRecord<String, String>> stream = KafkaUtils.createDirectStream(ssc,
				LocationStrategies.PreferConsistent(),
				ConsumerStrategies.<String, String>Subscribe(topicsCollection, kafkaParams, fromOffsets));
{code}

Digging deeper shows that there's an assert statement such that if no records are returned
(which is a valid case) then a failure will happen.

https://github.com/apache/spark/blob/39e2bad6a866d27c3ca594d15e574a1da3ee84cc/external/kafka-0-10/src/main/scala/org/apache/spark/streaming/kafka010/CachedKafkaConsumer.scala#L75


  was:
Kafka direct stream fails with poll timeout:

{code:java}
JavaInputDStream<ConsumerRecord<String, String>> stream = KafkaUtils.createDirectStream(ssc,
				LocationStrategies.PreferConsistent(),
				ConsumerStrategies.<String, String>Subscribe(topicsCollection, kafkaParams, fromOffsets));
{code}

Digging deeper shows that there's an assert statement such that if no records are returned
(which is a valid case) then a failure will happen.

{code:java}
https://github.com/apache/spark/blob/39e2bad6a866d27c3ca594d15e574a1da3ee84cc/external/kafka-0-10/src/main/scala/org/apache/spark/streaming/kafka010/CachedKafkaConsumer.scala#L75
{code}


> Spark Poll timeout when specific offsets are passed
> ---------------------------------------------------
>
>                 Key: SPARK-21378
>                 URL: https://issues.apache.org/jira/browse/SPARK-21378
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.0.0, 2.0.2
>            Reporter: Ambud Sharma
>
> Kafka direct stream fails with poll timeout:
> {code:java}
> JavaInputDStream<ConsumerRecord<String, String>> stream = KafkaUtils.createDirectStream(ssc,
> 				LocationStrategies.PreferConsistent(),
> 				ConsumerStrategies.<String, String>Subscribe(topicsCollection, kafkaParams,
fromOffsets));
> {code}
> Digging deeper shows that there's an assert statement such that if no records are returned
(which is a valid case) then a failure will happen.
> https://github.com/apache/spark/blob/39e2bad6a866d27c3ca594d15e574a1da3ee84cc/external/kafka-0-10/src/main/scala/org/apache/spark/streaming/kafka010/CachedKafkaConsumer.scala#L75



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