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https://issues.apache.org/jira/browse/SPARK-3228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14110442#comment-14110442
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Apache Spark commented on SPARK-3228:
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User 'Leolh' has created a pull request for this issue:
https://github.com/apache/spark/pull/2132
> When DStream save RDD to hdfs , don't create directory and empty file if
> there are no data received from source in the batch duration .
> ---------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SPARK-3228
> URL: https://issues.apache.org/jira/browse/SPARK-3228
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Reporter: Leo
>
> When I use DStream to save files to hdfs, it will create a directory and a
> empty file named "_SUCCESS" for each job which made in the batch duration.
> But if there are no data from source for a long time , and the duration is
> very short(e.g. 10s), it will create so many directory and empty files in
> hdfs.
> I don't think it is necessary. So I want to modify class DStream's method
> saveAsObjectFiles and saveAsTextFiles , it creates directory and files just
> when the RDD's partitions size > 0 .
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