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https://issues.apache.org/jira/browse/SPARK-51770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun resolved SPARK-51770.
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Fix Version/s: kubernetes-operator-0.1.0
Resolution: Fixed
Issue resolved by pull request 171
[https://github.com/apache/spark-kubernetes-operator/pull/171]
> Set Content-Type headers for Prometheus v3 compatibility
> --------------------------------------------------------
>
> Key: SPARK-51770
> URL: https://issues.apache.org/jira/browse/SPARK-51770
> Project: Spark
> Issue Type: Sub-task
> Components: Kubernetes
> Affects Versions: kubernetes-operator-0.1.0
> Reporter: Zhou JIANG
> Assignee: Zhou JIANG
> Priority: Major
> Labels: pull-request-available
> Fix For: kubernetes-operator-0.1.0
>
>
> Prometheus v3 will fail the scrape if the Content-Type header is not present
> in response and the fallback scrape protocol is not configured. Therefore
> we'd configure the headers properly for the operator metrics handler.
> Please also refer
> [https://prometheus.io/docs/prometheus/latest/migration/#scrape-protocols]
>
>
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