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https://issues.apache.org/jira/browse/SPARK-53980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-53980:
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Parent: SPARK-51166
Issue Type: Sub-task (was: Improvement)
> Add `SparkConf.getAllWithPrefix(String, String => K)` API
> ---------------------------------------------------------
>
> Key: SPARK-53980
> URL: https://issues.apache.org/jira/browse/SPARK-53980
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core
> Affects Versions: 4.1.0
> Reporter: Jiaan Geng
> Assignee: Jiaan Geng
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.1.0
>
>
> We need to set some config related to S3 for our inner Spark. The
> implementation of the function show below.
> {code:java}
> private def setS3Configs(conf: SparkConf): Unit = {
> val S3A_PREFIX = "spark.fs.s3a"
> val SPARK_HADOOP_S3A_PREFIX = "spark.hadoop.fs.s3a"
> val s3aConf = conf.getAllWithPrefix(S3A_PREFIX)
> s3aConf
> .foreach(
> confPair => {
> val keyWithoutPrefix = confPair._1
> val oldKey = S3A_PREFIX + keyWithoutPrefix
> val newKey = SPARK_HADOOP_S3A_PREFIX + keyWithoutPrefix
> val value = confPair._2
> (newKey, value)
> })
> }
> {code}
> These code seems redundant and complicated. The reason is getAllWithPrefix
> only return the suffix part.
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