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https://issues.apache.org/jira/browse/SPARK-33175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17216097#comment-17216097
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Apache Spark commented on SPARK-33175:
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User 'dongjoon-hyun' has created a pull request for this issue:
https://github.com/apache/spark/pull/30080
> Detect duplicated mountPath and fail at Spark side
> --------------------------------------------------
>
> Key: SPARK-33175
> URL: https://issues.apache.org/jira/browse/SPARK-33175
> Project: Spark
> Issue Type: Sub-task
> Components: Kubernetes
> Affects Versions: 3.1.0
> Reporter: Dongjoon Hyun
> Priority: Major
>
> If there is a mountPath conflict, the pod is created and repeats the
> following error messages and keep running.
> {code}
> $ k get pod -l 'spark-role in (driver,executor)'
> NAME READY STATUS RESTARTS AGE
> tpcds 1/1 Running 0 4m20s
> {code}
> {code}
> 20/10/18 05:09:26 WARN ExecutorPodsSnapshotsStoreImpl: Exception when
> notifying snapshot subscriber.
> io.fabric8.kubernetes.client.KubernetesClientException: Failure executing:
> POST at:
> https://2fba95910afd97c73b9a74acc07e0167.sk1.us-west-2.eks.amazonaws.com/api/v1/namespaces/default/pods.
> Message: Pod "tpcds-exec-1" is invalid:
> spec.containers[0].volumeMounts[1].mountPath: Invalid value: "/data1": must
> be unique. Received status: Status(apiVersion=v1, code=422,
> details=StatusDetails(causes=[StatusCause(field=spec.containers[0].volumeMounts[1].mountPath,
> message=Invalid value: "/data1": must be unique, reason=FieldValueInvalid,
> additionalProperties={})], group=null, kind=Pod, name=tpcds-exec-1,
> retryAfterSeconds=null, uid=null, additionalProperties={}), kind=Status,
> message=Pod "tpcds-exec-1" is invalid:
> spec.containers[0].volumeMounts[1].mountPath: Invalid value: "/data1": must
> be unique, metadata=ListMeta(_continue=null, remainingItemCount=null,
> resourceVersion=null, selfLink=null, additionalProperties={}),
> reason=Invalid, status=Failure, additionalProperties={}).
> {code}
> We had better fail at Spark side.
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