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https://issues.apache.org/jira/browse/SPARK-24599?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Marcelo Vanzin resolved SPARK-24599.
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Resolution: Won't Fix
SPARK_MOUNTED_CLASSPATH doesn't exist anymore, so I'm assuming that the current
way of starting the driver / executor avoids this issue.
> SPARK_MOUNTED_CLASSPATH contains incorrect semicolon on Windows
> ---------------------------------------------------------------
>
> Key: SPARK-24599
> URL: https://issues.apache.org/jira/browse/SPARK-24599
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes, Windows
> Affects Versions: 2.3.0, 2.3.1
> Reporter: Tobias Munk
> Priority: Major
>
> When running spark-submit in cluster mode on kubernetes on a windows machine,
> the environment variable {{SPARK_MOUNTED_CLASSPATH}} does incorrectly contain
> a semicolon:
> {code:java}
> $ echo $SPARK_MOUNTED_CLASSPATH
> /opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar;/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar
> {code}
> When running spark-submit, the driver aborts:
> {code:java}
> ./bin/spark-submit.cmd --master k8s://https://localhost:6445 --deploy-mode
> cluster --name spark-pi --class org.apache.spark.examples.SparkPi --conf
> spark.executor.insta
> nces=1 --conf spark.kubernetes.container.image=spark:k8s-spark1
> local:///opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar{code}
> {code:java}
> kubectl logs spark-pi-b12d0501f2fc309d89e8634937b7f52c-driver
> ++ id -u
> + myuid=0
> ++ id -g
> + mygid=0
> ++ getent passwd 0
> + uidentry=root:x:0:0:root:/root:/bin/ash
> + '[' -z root:x:0:0:root:/root:/bin/ash ']'
> + SPARK_K8S_CMD=driver
> + '[' -z driver ']'
> + shift 1
> + SPARK_CLASSPATH=':/opt/spark/jars/*'
> + env
> + grep SPARK_JAVA_OPT_
> + sed 's/[^=]*=\(.*\)/\1/g'
> + sort -t_ -k4 -n
> + readarray -t SPARK_JAVA_OPTS
> + '[' -n
> '/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar;/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar'
> ']'
> +
> SPARK_CLASSPATH=':/opt/spark/jars/*:/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar;/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar'
> + '[' -n '' ']'
> + case "$SPARK_K8S_CMD" in
> + CMD=(${JAVA_HOME}/bin/java "${SPARK_JAVA_OPTS[@]}" -cp "$SPARK_CLASSPATH"
> -Xms$SPARK_DRIVER_MEMORY -Xmx$SPARK_DRIVER_MEMORY
> -Dspark.driver.bindAddress=$SPARK_DRIVER_BIND_ADDRESS $SPARK_DRIVER_CLASS
> $SPARK_DRIVER_ARGS)
> + exec /sbin/tini -s -- /usr/lib/jvm/java-1.8-openjdk/bin/java
> -Dspark.kubernetes.driver.pod.name=spark-pi-b12d0501f2fc309d89e8634937b7f52c-driver
>
> -Dspark.jars=/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar,/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar
> -Dspark.app.name=spark-pi -Dspark.submit.deployMode=cluster
> -Dspark.driver.blockManager.port=7079
> -Dspark.kubernetes.executor.podNamePrefix=spark-pi-b12d0501f2fc309d89e8634937b7f52c
> -Dspark.executor.instances=1
> -Dspark.app.id=spark-65f2c8cc3ccf462694a67c18e947158c
> -Dspark.driver.port=7078 -Dspark.master=k8s://https://localhost:6445
> -Dspark.kubernetes.container.image=spark:k8s-spark1
> -Dspark.driver.host=spark-pi-b12d0501f2fc309d89e8634937b7f52c-driver-svc.default.svc
> -cp
> ':/opt/spark/jars/*:/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar;/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar'
> -Xms1g -Xmx1g -Dspark.driver.bindAddress=10.1.0.150
> org.apache.spark.examples.SparkPi
> Error: Could not find or load main class
> org.apache.spark.examples.SparkPi{code}
> (Note the semicolon in the last part of the line SPARK_CLASSPATH=...)
> You can overwrite {{SPARK_MOUNTED_CLASSPATH}} in
> {{$SPARK_HOME/kubernetes/dockerfiles/spark/entrypoint.sh}} removing the part
> with the semicolon, and then rebuild the docker image with
> {{$SPARK_HOME/bin/docker-image-tool.sh}}. After that, spark-submit does
> succeed.
> See also SO:
> https://stackoverflow.com/questions/49728170/spark-submit-from-windows-vs-linux
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