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https://issues.apache.org/jira/browse/SPARK-56845?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tongwei updated SPARK-56845:
----------------------------
Description: (was: When spark.app.name is very long (>229 chars), the
derived
resourceNamePrefix plus a fixed suffix (-hadoop-config, -krb5-file,
-driver-podspec-conf-map) exceeds the Kubernetes DNS subdomain limit of
253 characters, and driver submission fails with "must be no more than
253 characters".
The existing KubernetesClientUtils.configMapName helper truncates
correctly but is hardcoded to the -conf-map suffix and unused by these
three call sites.
Add a configMapName(prefix, suffix) overload that falls back to
spark-<uniqueID><suffix> when prefix+suffix exceeds the limit, and
migrate the three sites to it.)
> Truncate ConfigMap names that exceed DNS subdomain limit
> --------------------------------------------------------
>
> Key: SPARK-56845
> URL: https://issues.apache.org/jira/browse/SPARK-56845
> Project: Spark
> Issue Type: Bug
> Components: Kubernetes
> Affects Versions: 4.1.1
> Reporter: Tongwei
> Priority: Major
> Labels: pull-request-available
>
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