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https://issues.apache.org/jira/browse/SPARK-30771?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Prashant Sharma updated SPARK-30771:
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Summary: Failed mount warning from kubernetes and support the "optional"
mount. (was: Avoid failed mount warning from kubernetes and support the
"optional" mount.)
> Failed mount warning from kubernetes and support the "optional" mount.
> ----------------------------------------------------------------------
>
> Key: SPARK-30771
> URL: https://issues.apache.org/jira/browse/SPARK-30771
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes
> Affects Versions: 3.0.0
> Reporter: Prashant Sharma
> Priority: Major
> Attachments: Screenshot 2020-02-10 at 3.10.01 PM.png
>
>
> 1)https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.17/#configmapvolumesource-v1-core
> Kubernetes allows an optional field indicating, that if the mount for this
> config map fails, then it is not reattempted nor the pod is declared to be
> failed.
> In our current code base, we try to mount the volumes and create them later,
> it works because, kubernetes reattempts failed mounting attempt, because the
> `optional` field is `false` by default.
> But, if this optional field is set to true, then that mount will not take
> place at all. Because, when the mount is performed the volume is not created
> - so mount fails. And this time the mount is not reattempted because the
> optional field is set as true.
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