Details
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Bug
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Status: Closed
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Major
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Resolution: Not A Problem
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2.4.5
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None
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None
Description
I'm trying to mount additional hostPath directories as seen in a couple of places:
https://aws.amazon.com/blogs/containers/optimizing-spark-performance-on-kubernetes/
https://spark.apache.org/docs/latest/running-on-kubernetes.html#using-kubernetes-volumes
However, whenever I try to submit my job, I run into this error:
Uncaught exception in thread kubernetes-executor-snapshots-subscribers-1 │
io.fabric8.kubernetes.client.KubernetesClientException: Failure executing: POST at: https://kubernetes.default.svc/api/v1/namespaces/my-spark-ns/pods. Message: Pod "spark-pi-1588970477877-exec-1" is invalid: spec.containers[0].volumeMounts[1].mountPath: Invalid value: "/tmp1": must be unique. Received status: Status(apiVersion=v1, code=422, details=StatusDetails(causes=[StatusCause(field=spec.containers[0].volumeMounts[1].mountPath, message=Invalid value: "/tmp1": must be unique, reason=FieldValueInvalid, additionalProperties={})], group=null, kind=Pod, name=spark-pi-1588970477877-exec-1, retryAfterSeconds=null, uid=null, additionalProperties={}), kind=Status, message=Pod "spark-pi-1588970477877-exec-1" is invalid: spec.containers[0].volumeMounts[1].mountPath: Invalid value: "/tmp1": must be unique, metadata=ListMeta(_continue=null, remainingItemCount=null, resourceVersion=null, selfLink=null, additionalProperties={}), reason=Invalid, status=Failure, additionalProperties={}).
This is my spark-submit command (note: I've used my own build of spark for kubernetes as well as a few other images that I've seen floating around (such as this one seedjeffwan/spark:v2.4.5) and they all have this same issue):
bin/spark-submit \ --master k8s://https://my-k8s-server:443 \ --deploy-mode cluster \ --name spark-pi \ --class org.apache.spark.examples.SparkPi \ --conf spark.executor.instances=2 \ --conf spark.kubernetes.container.image=my-spark-image:my-tag \ --conf spark.kubernetes.driver.pod.name=sparkpi-test-driver \ --conf spark.kubernetes.namespace=my-spark-ns \ --conf spark.kubernetes.executor.volumes.hostPath.spark-local-dir-2.mount.path=/tmp1 \ --conf spark.kubernetes.executor.volumes.hostPath.spark-local-dir-2.options.path=/tmp1 \ --conf spark.local.dir="/tmp1" \ --conf spark.kubernetes.authenticate.driver.serviceAccountName=spark local:///opt/spark/examples/jars/spark-examples_2.11-2.4.5.jar 20000
Any ideas on what's causing this?
Attachments
Issue Links
- relates to
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SPARK-23529 Specify hostpath volume and mount the volume in Spark driver and executor pods in Kubernetes
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- Resolved
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