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https://issues.apache.org/jira/browse/SPARK-13727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15184095#comment-15184095
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Apache Spark commented on SPARK-13727:
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User 'bomeng' has created a pull request for this issue:
https://github.com/apache/spark/pull/11568
> SparkConf.contains does not consider deprecated keys
> ----------------------------------------------------
>
> Key: SPARK-13727
> URL: https://issues.apache.org/jira/browse/SPARK-13727
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Reporter: Marcelo Vanzin
> Priority: Minor
>
> This makes it kinda inconsistent with other SparkConf APIs. For example:
> {code}
> scala> import org.apache.spark.SparkConf
> import org.apache.spark.SparkConf
> scala> val conf = new SparkConf().set("spark.io.compression.lz4.block.size",
> "12345")
> 16/03/07 10:55:17 WARN spark.SparkConf: The configuration key
> 'spark.io.compression.lz4.block.size' has been deprecated as of Spark 1.4 and
> and may be removed in the future. Please use the new key
> 'spark.io.compression.lz4.blockSize' instead.
> conf: org.apache.spark.SparkConf = org.apache.spark.SparkConf@221e8982
> scala> conf.get("spark.io.compression.lz4.blockSize")
> res0: String = 12345
> scala> conf.contains("spark.io.compression.lz4.blockSize")
> res1: Boolean = false
> {code}
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