[
https://issues.apache.org/jira/browse/SPARK-20050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15938988#comment-15938988
]
Sasaki Toru commented on SPARK-20050:
-------------------------------------
Thank you for your comment, but I can't understand your advice, sorry.
I want to say some offset set in {{commitAsync}} will not commit to Kafka.
I think callback function will invoke when committed to Kafka completely
(success or failed),
so I think this function will not be invoked in this case.
If I am wrong, please correct, thanks.
> Kafka 0.10 DirectStream doesn't commit last processed batch's offset when
> graceful shutdown
> -------------------------------------------------------------------------------------------
>
> Key: SPARK-20050
> URL: https://issues.apache.org/jira/browse/SPARK-20050
> Project: Spark
> Issue Type: Bug
> Components: DStreams
> Affects Versions: 2.2.0
> Reporter: Sasaki Toru
>
> I use Kafka 0.10 DirectStream with properties 'enable.auto.commit=false' and
> call 'DirectKafkaInputDStream#commitAsync' finally in each batches, such
> below
> {code}
> val kafkaStream = KafkaUtils.createDirectStream[String, String](...)
> kafkaStream.map { input =>
> "key: " + input.key.toString + " value: " + input.value.toString + "
> offset: " + input.offset.toString
> }.foreachRDD { rdd =>
> rdd.foreach { input =>
> println(input)
> }
> }
> kafkaStream.foreachRDD { rdd =>
> val offsetRanges = rdd.asInstanceOf[HasOffsetRanges].offsetRanges
> kafkaStream.asInstanceOf[CanCommitOffsets].commitAsync(offsetRanges)
> }
> {\code}
> Some records which processed in the last batch before Streaming graceful
> shutdown reprocess in the first batch after Spark Streaming restart.
> It may cause offsets specified in commitAsync will commit in the head of next
> batch.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
