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[SPARK-12316] Wait a minutes to avoid cycle calling. #10475

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[SPARK-12316] Wait a minutes to avoid cycle calling. #10475

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Wait a minutes to avoid cycle calling.
SaintBacchus Dec 25, 2015
af046ba
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SaintBacchus Feb 18, 2016
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5 changes: 4 additions & 1 deletion yarn/src/main/scala/org/apache/spark/deploy/yarn/ExecutorDelegationTokenUpdater.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -76,7 +76,10 @@ private[spark] class ExecutorDelegationTokenUpdater(
SparkHadoopUtil.get.getTimeFromNowToRenewal(
sparkConf, 0.8, UserGroupInformation.getCurrentUser.getCredentials)
if (timeFromNowToRenewal <= 0) {
executorUpdaterRunnable.run()
// We just checked for new credentials but none were there, wait a minute and retry.
// This handles the shutdown case where the staging directory may have been removed(see
// SPARK-12316 for more details).
delegationTokenRenewer.schedule(executorUpdaterRunnable, 1, TimeUnit.MINUTES)
} else {
logInfo(s"Scheduling token refresh from HDFS in $timeFromNowToRenewal millis.")
delegationTokenRenewer.schedule(
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