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Posted to issues@spark.apache.org by "Sasaki Toru (JIRA)" <ji...@apache.org> on 2017/03/22 05:47:41 UTC
[jira] [Commented] (SPARK-20052) Some InputDStream needs closing
processing after processing all batches when graceful shutdown
[ https://issues.apache.org/jira/browse/SPARK-20052?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15935789#comment-15935789 ]
Sasaki Toru commented on SPARK-20052:
-------------------------------------
My explain is not good, sorry.
This ticket is related to SPARK-20050.
In JobGenerate#stop, it will wait for finishing all batches after InputDStream#stop called when graceful shutdown is enable,
but Kafka 0.10 DirectStream should commit offset after processing all batches.
So I thought more process(I explained this "closing process") is needed after processing all batches.
> Some InputDStream needs closing processing after processing all batches when graceful shutdown
> ----------------------------------------------------------------------------------------------
>
> Key: SPARK-20052
> URL: https://issues.apache.org/jira/browse/SPARK-20052
> Project: Spark
> Issue Type: Improvement
> Components: DStreams
> Affects Versions: 2.2.0
> Reporter: Sasaki Toru
>
> Some class extend InputDStream needs closing processing after processing all batches when graceful shutdown enabled.
> (e.g. When using Kafka as data source, need to commit processed offsets to Kafka Broker)
> InputDStream has method 'stop' to stop receiving data, but this method will be called before processing last batches generated for graceful shutdown.
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