Kubernetes 1.9 can't initialize SparkContext - apache-spark

Question

Trying to catch up with the Spark 2.3 documentation on how to deploy jobs on a Kubernetes 1.9.3 cluster : http://spark.apache.org/docs/latest/running-on-kubernetes.html
The Kubernetes 1.9.3 cluster is operating properly on offline bare-metal servers and was installed with kubeadm. The following command was used to submit the job (SparkPi example job):
/opt/spark/bin/spark-submit --master k8s://https://k8s-master:6443 --deploy-mode cluster --name spark-pi --class org.apache.spark.examples.SparkPi --conf spark.executor.instances=2 --conf spark.kubernetes.container.image=spark:v2.3.0 local:///opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar
Here is the stacktrace that we all love:
++ 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'
+ readarray -t SPARK_JAVA_OPTS
+ '[' -n /opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar:/opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar ']'
+ SPARK_CLASSPATH=':/opt/spark/jars/*:/opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar:/opt/spark/examples/jars/spark-examples_2.11-2.3.0.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-b6f8a60df70a3b9d869c4e305518f43a-driver -Dspark.driver.port=7078 -Dspark.submit.deployMode=cluster -Dspark.master=k8s://https://k8s-master:6443 -Dspark.kubernetes.executor.podNamePrefix=spark-pi-b6f8a60df70a3b9d869c4e305518f43a -Dspark.driver.blockManager.port=7079 -Dspark.app.id=spark-7077ad8f86114551b0ae04ae63a74d5a -Dspark.driver.host=spark-pi-b6f8a60df70a3b9d869c4e305518f43a-driver-svc.default.svc -Dspark.app.name=spark-pi -Dspark.kubernetes.container.image=spark:v2.3.0 -Dspark.jars=/opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar,/opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar -Dspark.executor.instances=2 -cp ':/opt/spark/jars/*:/opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar:/opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar' -Xms1g -Xmx1g -Dspark.driver.bindAddress=10.244.1.17 org.apache.spark.examples.SparkPi
2018-03-07 12:39:35 INFO SparkContext:54 - Running Spark version 2.3.0
2018-03-07 12:39:36 WARN NativeCodeLoader:62 - Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2018-03-07 12:39:36 INFO SparkContext:54 - Submitted application: Spark Pi
2018-03-07 12:39:36 INFO SecurityManager:54 - Changing view acls to: root
2018-03-07 12:39:36 INFO SecurityManager:54 - Changing modify acls to: root
2018-03-07 12:39:36 INFO SecurityManager:54 - Changing view acls groups to:
2018-03-07 12:39:36 INFO SecurityManager:54 - Changing modify acls groups to:
2018-03-07 12:39:36 INFO SecurityManager:54 - SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(root); groups with view permissions: Set(); users with modify permissions: Set(root); groups with modify permissions: Set()
2018-03-07 12:39:36 INFO Utils:54 - Successfully started service 'sparkDriver' on port 7078.
2018-03-07 12:39:36 INFO SparkEnv:54 - Registering MapOutputTracker
2018-03-07 12:39:36 INFO SparkEnv:54 - Registering BlockManagerMaster
2018-03-07 12:39:36 INFO BlockManagerMasterEndpoint:54 - Using org.apache.spark.storage.DefaultTopologyMapper for getting topology information
2018-03-07 12:39:36 INFO BlockManagerMasterEndpoint:54 - BlockManagerMasterEndpoint up
2018-03-07 12:39:36 INFO DiskBlockManager:54 - Created local directory at /tmp/blockmgr-7f5370ad-b495-4943-ad75-285b7ead3e5b
2018-03-07 12:39:36 INFO MemoryStore:54 - MemoryStore started with capacity 408.9 MB
2018-03-07 12:39:36 INFO SparkEnv:54 - Registering OutputCommitCoordinator
2018-03-07 12:39:36 INFO log:192 - Logging initialized #1936ms
2018-03-07 12:39:36 INFO Server:346 - jetty-9.3.z-SNAPSHOT
2018-03-07 12:39:36 INFO Server:414 - Started #2019ms
2018-03-07 12:39:36 INFO AbstractConnector:278 - Started ServerConnector#4215838f{HTTP/1.1,[http/1.1]}{0.0.0.0:4040}
2018-03-07 12:39:36 INFO Utils:54 - Successfully started service 'SparkUI' on port 4040.
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#5b6813df{/jobs,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#495083a0{/jobs/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#5fd62371{/jobs/job,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#2b62442c{/jobs/job/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#66629f63{/stages,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#841e575{/stages/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#27a5328c{/stages/stage,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#6b5966e1{/stages/stage/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#65e61854{/stages/pool,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#1568159{/stages/pool/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#4fcee388{/storage,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#6f80fafe{/storage/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#3af17be2{/storage/rdd,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#f9879ac{/storage/rdd/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#37f21974{/environment,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#5f4d427e{/environment/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#6e521c1e{/executors,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#224b4d61{/executors/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#5d5d9e5{/executors/threadDump,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#303e3593{/executors/threadDump/json,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#4ef27d66{/static,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#62dae245{/,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#4b6579e8{/api,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#3954d008{/jobs/job/kill,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO ContextHandler:781 - Started o.s.j.s.ServletContextHandler#2f94c4db{/stages/stage/kill,null,AVAILABLE,#Spark}
2018-03-07 12:39:36 INFO SparkUI:54 - Bound SparkUI to 0.0.0.0, and started at http://spark-pi-b6f8a60df70a3b9d869c4e305518f43a-driver-svc.default.svc:4040
2018-03-07 12:39:36 INFO SparkContext:54 - Added JAR /opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar at spark://spark-pi-b6f8a60df70a3b9d869c4e305518f43a-driver-svc.default.svc:7078/jars/spark-examples_2.11-2.3.0.jar with timestamp 1520426376949
2018-03-07 12:39:37 WARN KubernetesClusterManager:66 - The executor's init-container config map is not specified. Executors will therefore not attempt to fetch remote or submitted dependencies.
2018-03-07 12:39:37 WARN KubernetesClusterManager:66 - The executor's init-container config map key is not specified. Executors will therefore not attempt to fetch remote or submitted dependencies.
2018-03-07 12:39:42 ERROR SparkContext:91 - Error initializing SparkContext.
org.apache.spark.SparkException: External scheduler cannot be instantiated
at org.apache.spark.SparkContext$.org$apache$spark$SparkContext$$createTaskScheduler(SparkContext.scala:2747)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:492)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2486)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:930)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:921)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:921)
at org.apache.spark.examples.SparkPi$.main(SparkPi.scala:31)
at org.apache.spark.examples.SparkPi.main(SparkPi.scala)
Caused by: io.fabric8.kubernetes.client.KubernetesClientException: Operation: [get] for kind: [Pod] with name: [spark-pi-b6f8a60df70a3b9d869c4e305518f43a-driver] in namespace: [default] failed.
at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:62)
at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:71)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:228)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.get(BaseOperation.java:184)
at org.apache.spark.scheduler.cluster.k8s.KubernetesClusterSchedulerBackend.<init>(KubernetesClusterSchedulerBackend.scala:70)
at org.apache.spark.scheduler.cluster.k8s.KubernetesClusterManager.createSchedulerBackend(KubernetesClusterManager.scala:120)
at org.apache.spark.SparkContext$.org$apache$spark$SparkContext$$createTaskScheduler(SparkContext.scala:2741)
... 8 more
Caused by: java.net.UnknownHostException: kubernetes.default.svc: Try again
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
at java.net.InetAddress.getAllByName(InetAddress.java:1192)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at okhttp3.Dns$1.lookup(Dns.java:39)
at okhttp3.internal.connection.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:171)
at okhttp3.internal.connection.RouteSelector.nextProxy(RouteSelector.java:137)
at okhttp3.internal.connection.RouteSelector.next(RouteSelector.java:82)
at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:171)
at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:121)
at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:100)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:120)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at io.fabric8.kubernetes.client.utils.HttpClientUtils$2.intercept(HttpClientUtils.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:185)
at okhttp3.RealCall.execute(RealCall.java:69)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:377)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:343)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:312)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:295)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.handleGet(BaseOperation.java:783)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:217)
... 12 more
2018-03-07 12:39:42 INFO AbstractConnector:318 - Stopped Spark#4215838f{HTTP/1.1,[http/1.1]}{0.0.0.0:4040}
2018-03-07 12:39:42 INFO SparkUI:54 - Stopped Spark web UI at http://spark-pi-b6f8a60df70a3b9d869c4e305518f43a-driver-svc.default.svc:4040
2018-03-07 12:39:42 INFO MapOutputTrackerMasterEndpoint:54 - MapOutputTrackerMasterEndpoint stopped!
2018-03-07 12:39:42 INFO MemoryStore:54 - MemoryStore cleared
2018-03-07 12:39:42 INFO BlockManager:54 - BlockManager stopped
2018-03-07 12:39:42 INFO BlockManagerMaster:54 - BlockManagerMaster stopped
2018-03-07 12:39:42 WARN MetricsSystem:66 - Stopping a MetricsSystem that is not running
2018-03-07 12:39:42 INFO OutputCommitCoordinator$OutputCommitCoordinatorEndpoint:54 - OutputCommitCoordinator stopped!
2018-03-07 12:39:42 INFO SparkContext:54 - Successfully stopped SparkContext
Exception in thread "main" org.apache.spark.SparkException: External scheduler cannot be instantiated
at org.apache.spark.SparkContext$.org$apache$spark$SparkContext$$createTaskScheduler(SparkContext.scala:2747)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:492)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2486)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:930)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:921)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:921)
at org.apache.spark.examples.SparkPi$.main(SparkPi.scala:31)
at org.apache.spark.examples.SparkPi.main(SparkPi.scala)
Caused by: io.fabric8.kubernetes.client.KubernetesClientException: Operation: [get] for kind: [Pod] with name: [spark-pi-b6f8a60df70a3b9d869c4e305518f43a-driver] in namespace: [default] failed.
at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:62)
at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:71)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:228)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.get(BaseOperation.java:184)
at org.apache.spark.scheduler.cluster.k8s.KubernetesClusterSchedulerBackend.<init>(KubernetesClusterSchedulerBackend.scala:70)
at org.apache.spark.scheduler.cluster.k8s.KubernetesClusterManager.createSchedulerBackend(KubernetesClusterManager.scala:120)
at org.apache.spark.SparkContext$.org$apache$spark$SparkContext$$createTaskScheduler(SparkContext.scala:2741)
... 8 more
Caused by: java.net.UnknownHostException: kubernetes.default.svc: Try again
at java.net.Inet4AddressImpl.lookupAllHostAddr(Native Method)
at java.net.InetAddress$2.lookupAllHostAddr(InetAddress.java:928)
at java.net.InetAddress.getAddressesFromNameService(InetAddress.java:1323)
at java.net.InetAddress.getAllByName0(InetAddress.java:1276)
at java.net.InetAddress.getAllByName(InetAddress.java:1192)
at java.net.InetAddress.getAllByName(InetAddress.java:1126)
at okhttp3.Dns$1.lookup(Dns.java:39)
at okhttp3.internal.connection.RouteSelector.resetNextInetSocketAddress(RouteSelector.java:171)
at okhttp3.internal.connection.RouteSelector.nextProxy(RouteSelector.java:137)
at okhttp3.internal.connection.RouteSelector.next(RouteSelector.java:82)
at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:171)
at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:121)
at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:100)
at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:120)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at io.fabric8.kubernetes.client.utils.HttpClientUtils$2.intercept(HttpClientUtils.java:93)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:92)
at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:67)
at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:185)
at okhttp3.RealCall.execute(RealCall.java:69)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:377)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:343)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:312)
at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:295)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.handleGet(BaseOperation.java:783)
at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:217)
... 12 more
2018-03-07 12:39:42 INFO ShutdownHookManager:54 - Shutdown hook called
2018-03-07 12:39:42 INFO ShutdownHookManager:54 - Deleting directory /tmp/spark-64fe7ad8-669f-4591-a3f6-67440d450a44
So apparently the Kubernetes Scheduler Backend cannot contact the pod because it is unable to resolve kubernetes.default.svc. Hum.. why?
I also configured RBAC with a spark service account as mentionned in the documentation but the same problem occurs. (also tried on a different namespace, same problem)
Here are the logs from kube-dns:
I0306 16:04:04.170889 1 dns.go:555] Could not find endpoints for service "spark-pi-b9e8b4c66fe83c4d94a8d46abc2ee8f5-driver-svc" in namespace "default". DNS records will be created once endpoints show up.
I0306 16:04:29.751201 1 dns.go:555] Could not find endpoints for service "spark-pi-0665ad323820371cb215063987a31e05-driver-svc" in namespace "default". DNS records will be created once endpoints show up.
I0306 16:06:26.414146 1 dns.go:555] Could not find endpoints for service "spark-pi-2bf24282e8033fa9a59098616323e267-driver-svc" in namespace "default". DNS records will be created once endpoints show up.
I0307 08:16:17.404971 1 dns.go:555] Could not find endpoints for service "spark-pi-3887031e031732108711154b2ec57d28-driver-svc" in namespace "default". DNS records will be created once endpoints show up.
I0307 08:17:11.682218 1 dns.go:555] Could not find endpoints for service "spark-pi-3d84127226393fc99e2fe035db56bfb5-driver-svc" in namespace "default". DNS records will be created once endpoints show up.
I really can't figure out why those errors come up.

Answer 1

Try to alter the pod network with one method except Calico, check whether kube-dns work well.
To create a custom service account, a user can use the kubectl create serviceaccount command. For example, the following command creates a service account named spark:
$ kubectl create serviceaccount spark
To grant a service account a Role or ClusterRole, a RoleBinding or ClusterRoleBinding is needed. To create a RoleBinding or ClusterRoleBinding, a user can use the kubectl create rolebinding (or clusterrolebinding for ClusterRoleBinding) command. For example, the following command creates an edit ClusterRole in the default namespace and grants it to the spark service account created above:
$ kubectl create clusterrolebinding spark-role --clusterrole=edit --serviceaccount=default:spark --namespace=default
Depending on the version and setup of Kubernetes deployed, this default service account may or may not have the role that allows driver pods to create pods and services under the default Kubernetes RBAC policies. Sometimes users may need to specify a custom service account that has the right role granted. Spark on Kubernetes supports specifying a custom service account to be used by the driver pod through the configuration property spark.kubernetes.authenticate.driver.serviceAccountName=. For example to make the driver pod use the spark service account, a user simply adds the following option to the spark-submit command:
spark-submit --master k8s://https://192.168.1.5:6443 --deploy-mode cluster --name spark-pi --class org.apache.spark.examples.SparkPi --conf spark.executor.instances=5 --conf spark.kubernetes.authenticate.driver.serviceAccountName=spark --conf spark.kubernetes.container.image=leeivan/spark:latest local:///opt/spark/examples/jars/spark-examples_2.11-2.3.0.jar

Answer 2

I faced the same issue. If you're using minikube. Try deleting minikube using minikube delete and minikube start.
Then create serviceaccount and clusterrolebinding

Answer 3

To add to openbrace's answer,
and based on Ivan Lee's answer too,
if you are using minikube,
running the following command was enough for me:
kubectl create clusterrolebinding default --clusterrole=edit --serviceaccount=default:default --namespace=default
That way, I didn't have to change spark.kubernetes.authenticate.driver.serviceAccountName when using spark-submit.

Answer 4

Test if pod with your spark image can resolve dns
create test_dns.yaml file:
apiVersion: v1
kind: Pod
metadata:
name: testdns
namespace: default
spec:
containers:
- name: testdns
image: <your-spark-image>
command:
- sleep
- "3600"
imagePullPolicy: IfNotPresent
restartPolicy: Always
apply it
kubectl apply -f test-dns.yaml
run nslookup for kubernetes.default.svc
kubectl exec -ti testdns -- nslookup kubernetes.default.svc
run it multiple time to check if your dns run consistently