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Canbin Zheng commented on FLINK-15816: -------------------------------------- Hi [~fly_in_gis] I think it would be good to prevent the bad thing before it happens. I agree with [~trohrmann] that we throw a meaningful exception message telling users that the value of \{{kubernetes.cluster-id}} must be no more than xxx characters, and also, we should add limitation doc description for the \{{kubernetes.cluster-id}} option. > 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 > Reporter: Canbin Zheng > Assignee: Canbin Zheng > Priority: Minor > Fix For: 1.11.0, 1.10.1 > > Attachments: image-2020-01-31-20-54-33-340.png > > > 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)