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https://issues.apache.org/jira/browse/FLINK-15816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17417129#comment-17417129
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Robert Metzger commented on FLINK-15816:
----------------------------------------
Oh, you are right!
I misread the error message. This is the original error I got:
{code}
io.fabric8.kubernetes.client.KubernetesClientException: Failure executing: PUT
at:
https://172.20.0.1/api/v1/namespaces/robert/configmaps/1f68c84c-7c13-47fa-aa33-c799512f358c-troubleshoot-throughput0-fork0-resourcemanager-leader.
Message: ConfigMap
"1f68c84c-7c13-47fa-aa33-c799512f358c-troubleshoot-throughput0-fork0-resourcemanager-leader"
is invalid: metadata.labels: Invalid value:
"1f68c84c-7c13-47fa-aa33-c799512f358c-troubleshoot-throughput0-fork0": must be
no more than 63 characters.
{code}
The problem is not the configmap name, but the label Flink is putting.
> Limit the maximum length of the value of kubernetes.cluster-id configuration
> option
> -----------------------------------------------------------------------------------
>
> Key: FLINK-15816
> URL: https://issues.apache.org/jira/browse/FLINK-15816
> Project: Flink
> Issue Type: Sub-task
> Components: Deployment / Kubernetes
> Affects Versions: 1.10.0, 1.14.1
> Reporter: Canbin Zheng
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.0
>
> Attachments: image-2020-01-31-20-54-33-340.png
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Two Kubernetes Service will be created when a session cluster is deployed,
> one is the internal Service and the other is the rest Service, we set the
> internal Service name to the value of the _kubernetes.cluster-id_
> configuration option and then set the rest Service name to
> _${kubernetes.cluster-id}_ with a suffix *-rest* appended, said if we set the
> _kubernetes.cluster-id_ to *session-test*, then the internal Service name
> will be *session-test* and the rest Service name be *session-test-rest;*
> there is a constraint in Kubernetes that the Service name must be no more
> than 63 characters, for the current naming convention it leads to that the
> value of _kubernetes.cluster-id_ should not be more than 58 characters,
> otherwise there are scenarios that the internal Service is created
> successfully then comes up with a ClusterDeploymentException when trying to
> create the rest Service.
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