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https://issues.apache.org/jira/browse/SPARK-23982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16438573#comment-16438573
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Marcelo Vanzin commented on SPARK-23982:
----------------------------------------
More details?
https://github.com/apache/spark/blob/branch-2.3/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/YarnSparkHadoopUtil.scala#L209
{noformat}
$ javap -cp resource-managers/yarn/target/scala-2.11/classes/
org.apache.spark.deploy.yarn.YarnSparkHadoopUtil | grep startCredentialUpd
public static void startCredentialUpdater(org.apache.spark.SparkConf);
{noformat}
> NoSuchMethodException: There is no startCredentialUpdater method in the
> object YarnSparkHadoopUtil
> --------------------------------------------------------------------------------------------------
>
> Key: SPARK-23982
> URL: https://issues.apache.org/jira/browse/SPARK-23982
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.3.0
> Reporter: John
> Priority: Major
>
> In the 219 line of the CoarseGrainedExecutorBackend class：
> Utils.classForName("org.apache.spark.deploy.yarn.YarnSparkHadoopUtil").getMethod("startCredentialUpdater",
> classOf[SparkConf]).invoke(null, driverConf)
> But, There is no startCredentialUpdater method in the object
> YarnSparkHadoopUtil.
>
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