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From dawn breaks <2005dawnbre...@gmail.com>
Subject Re: Got fatal error when running spark 2.4.0 on k8s
Date Thu, 14 Feb 2019 03:23:44 GMT
It seems that fabric8 kubernetes client can't parse the caCertFile in the
default location /var/run/secrets/kubernetes.io/serviceaccount/ca.crt,  and
anybody give me some advices?

On Wed, 13 Feb 2019 at 16:21, dawn breaks <2005dawnbreaks@gmail.com> wrote:

> we submit spark job to k8s by the following command, and the driver pod
> got an error and exit. Anybody can help us to solve it?
>
>  ./bin/spark-submit \
>     --master k8s://https://172.21.91.48:6443 \
>     --deploy-mode cluster \
>     --conf spark.kubernetes.authenticate.driver.serviceAccountName=spark \
>     --name spark-pi \
>     --class org.apache.spark.examples.SparkPi \
>     --conf spark.executor.instances=1 \
>     --conf spark.kubernetes.container.image=xxxRepo/spark:v2.4.0 \
>     local:///opt/spark/examples/jars/spark-examples*.jar \
>     5
>
>
> The error detail info as following:
>
> 2019-02-13 07:13:06 ERROR SparkContext:91 - Error initializing
> SparkContext.
> org.apache.spark.SparkException: External scheduler cannot be instantiated
>         at
> org.apache.spark.SparkContext$.org$apache$spark$SparkContext$$createTaskScheduler(SparkContext.scala:2794)
>         at org.apache.spark.SparkContext.<init>(SparkContext.scala:493)
>         at
> org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2520)
>         at
> org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:935)
>         at
> org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:926)
>         at scala.Option.getOrElse(Option.scala:121)
>         at
> org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:926)
>         at org.apache.spark.examples.SparkPi$.main(SparkPi.scala:31)
>         at org.apache.spark.examples.SparkPi.main(SparkPi.scala)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>         at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>         at java.lang.reflect.Method.invoke(Method.java:498)
>         at
> org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
>         at org.apache.spark.deploy.SparkSubmit.org
> <http://org.apache.spark.deploy.sparksubmit.org/>
> $apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:849)
>         at
> org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:167)
>         at
> org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:195)
>         at
> org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
>         at
> org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:924)
>         at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:933)
>         at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
> Caused by: io.fabric8.kubernetes.client.KubernetesClientException: An
> error has occurred.
>         at
> io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:62)
>         at
> io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:53)
>         at
> io.fabric8.kubernetes.client.utils.HttpClientUtils.createHttpClient(HttpClientUtils.java:167)
>         at
> org.apache.spark.deploy.k8s.SparkKubernetesClientFactory$.createKubernetesClient(SparkKubernetesClientFactory.scala:84)
>         at
> org.apache.spark.scheduler.cluster.k8s.KubernetesClusterManager.createSchedulerBackend(KubernetesClusterManager.scala:64)
>         at
> org.apache.spark.SparkContext$.org$apache$spark$SparkContext$$createTaskScheduler(SparkContext.scala:2788)
>         ... 20 more
> Caused by: java.security.cert.CertificateException: Could not parse
> certificate: java.io.IOException: Empty input
>         at
> sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:110)
>         at
> java.security.cert.CertificateFactory.generateCertificate(CertificateFactory.java:339)
>         at
> io.fabric8.kubernetes.client.internal.CertUtils.createTrustStore(CertUtils.java:93)
>         at
> io.fabric8.kubernetes.client.internal.CertUtils.createTrustStore(CertUtils.java:71)
>         at
> io.fabric8.kubernetes.client.internal.SSLUtils.trustManagers(SSLUtils.java:114)
>         at
> io.fabric8.kubernetes.client.internal.SSLUtils.trustManagers(SSLUtils.java:93)
>         at
> io.fabric8.kubernetes.client.utils.HttpClientUtils.createHttpClient(HttpClientUtils.java:63)
>         ... 23 more
> Caused by: java.io.IOException: Empty input
>         at
> sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:106)
>         ... 29 more
>

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