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https://issues.apache.org/jira/browse/FLINK-29261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17606342#comment-17606342
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Gyula Fora commented on FLINK-29261:
------------------------------------
I think this would be a reasonable improvement as the correct json properties
are already verified and guaranteed by Kubernetes itself based on the installed
CRD. This would give us a chance to handle multiple versions flexibly
> Consider using FAIL_ON_UNKNOWN_PROPERTIES=false in the Operator
> ---------------------------------------------------------------
>
> Key: FLINK-29261
> URL: https://issues.apache.org/jira/browse/FLINK-29261
> Project: Flink
> Issue Type: Bug
> Reporter: Matyas Orhidi
> Priority: Major
>
> The operator cannot be downgraded, once the CR specification is written to
> the `status`
>
> Caused by: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException:
> Unrecognized field "mode" (class
> org.apache.flink.kubernetes.operator.crd.spec.FlinkDeploymentSpec), not
> marked as ignorable (12 known properties: "restartNonce", "imagePullPolicy",
> "ingress", "flinkConfiguration", "serviceAccount", "image", "job",
> "podTemplate", "jobManager", "logConfiguration", "flinkVersion",
> "taskManager"])
> at [Source: UNKNOWN; byte offset: #UNKNOWN] (through reference chain:
> org.apache.flink.kubernetes.operator.crd.spec.FlinkDeploymentSpec["mode"])
> at
> com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException.from(UnrecognizedPropertyException.java:61)
> at
> com.fasterxml.jackson.databind.DeserializationContext.handleUnknownProperty(DeserializationContext.java:1127)
> at
> com.fasterxml.jackson.databind.deser.std.StdDeserializer.handleUnknownProperty(StdDeserializer.java:1989)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownProperty(BeanDeserializerBase.java:1700)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownVanilla(BeanDeserializerBase.java:1678)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:319)
> at
> com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:176)
> at
> com.fasterxml.jackson.databind.deser.DefaultDeserializationContext.readRootValue(DefaultDeserializationContext.java:322)
> at
> com.fasterxml.jackson.databind.ObjectMapper._readValue(ObjectMapper.java:4650)
> at
> com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2831)
> at
> com.fasterxml.jackson.databind.ObjectMapper.treeToValue(ObjectMapper.java:3295)
> at
> org.apache.flink.kubernetes.operator.reconciler.ReconciliationUtils.deserializeSpecWithMeta(ReconciliationUtils.java:288)
> ... 18 more
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