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https://issues.apache.org/jira/browse/SPARK-30595?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prashant Sharma resolved SPARK-30595.
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Resolution: Not A Problem
> Unable to create local temp dir on spark on k8s mode, with defaults.
> --------------------------------------------------------------------
>
> Key: SPARK-30595
> URL: https://issues.apache.org/jira/browse/SPARK-30595
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes
> Affects Versions: 3.0.0
> Reporter: Prashant Sharma
> Priority: Major
>
> Unless we configure the property, {code} spark.local.dir /tmp {code}
> following error occurs:
> {noformat}
> *20/01/21 08:33:17 INFO SparkEnv: Registering BlockManagerMasterHeartbeat*
> *20/01/21 08:33:17 ERROR DiskBlockManager: Failed to create local dir in
> /var/data/spark-284c6844-8969-4288-9a6b-b72679c5b8e4. Ignoring this
> directory.*
> *java.io.IOException: Failed to create a temp directory (under
> /var/data/spark-284c6844-8969-4288-9a6b-b72679c5b8e4) after 10 attempts!*
> *at org.apache.spark.util.Utils$.createDirectory(Utils.scala:304)*
> *at
> org.apache.spark.storage.DiskBlockManager.$anonfun$createLocalDirs$1(DiskBlockManager.scala:164)*
> *at
> scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:245)*
> *at
> scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)*
> {noformat}
> I have not yet fully understood the root cause, will post my findings once it
> is clear.
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