skonto commented on a change in pull request #25229: [SPARK-27900][K8s] Add jvm 
oom flag
URL: https://github.com/apache/spark/pull/25229#discussion_r308945410
 
 

 ##########
 File path: 
resource-managers/kubernetes/docker/src/main/dockerfiles/spark/entrypoint.sh
 ##########
 @@ -60,14 +60,44 @@ if ! [ -z ${HADOOP_CONF_DIR+x} ]; then
   SPARK_CLASSPATH="$HADOOP_CONF_DIR:$SPARK_CLASSPATH";
 fi
 
+IGNORE_DEFAULT_DRIVER_JVM_OPTIONS=${IGNORE_DEFAULT_DRIVER_JVM_OPTIONS:-false}
 
 Review comment:
   @dongjoon-hyun How can they unset `DEFAULT_DRIVER_JVM_OPTIONS` at runtime? 
Probably missing something here.  Do you mean by setting the container env var 
eg. spark.kubernetes.driverEnv.DEFAULT_DRIVER_JVM_OPTIONS=""? 

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