Tobias Munk created SPARK-24599:
-----------------------------------
Summary: 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: 2.3.1, 2.3.0
Reporter: Tobias Munk
When running spark-submit in cluster mode on kubernetes on a windows machine,
he 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:
./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: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
$SPARK_DRIVER_ARGS)
+ exec /sbin/tini -s -- /usr/lib/jvm/java-1.8-openjdk/bin/java
-Dspark.kubernetes.driver.pod.name=spark-pi-b12d0501f2fc309d89e8634937b7f52c-driver
-Dspark.jars=/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar,/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar
-Dspark.app.name=spark-pi -Dspark.submit.deployMode=cluster
-Dspark.driver.blockManager.port=7079
-Dspark.kubernetes.executor.podNamePrefix=spark-pi-b12d0501f2fc309d89e8634937b7f52c
-Dspark.executor.instances=1
-Dspark.app.id=spark-65f2c8cc3ccf462694a67c18e947158c -Dspark.driver.port=7078
-Dspark.master=k8s://https://localhost:6445
-Dspark.kubernetes.container.image=spark:k8s-spark1
-Dspark.driver.host=spark-pi-b12d0501f2fc309d89e8634937b7f52c-driver-svc.default.svc
-cp
':/opt/spark/jars/*:/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar;/opt/spark/examples/jars/spark-examples_2.11-2.3.1.jar'
-Xms1g -Xmx1g -Dspark.driver.bindAddress=10.1.0.150
org.apache.spark.examples.SparkPi
Error: Could not find or load main class org.apache.spark.examples.SparkPi{code}
You can overwrite {{SPARK_MOUNTED_CLASSPATH}} in
{{$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.
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