What is the reason of 409 Failure ?

[LittleWat]

Hello!

I deployed the standalone operator and applied the following yaml.

kubectl apply --server-side -f greeting-schema.yaml

Here is greeting-schema.yaml

---
apiVersion: artifact.apicur.io/v1alpha1
kind: Artifact
metadata:
  name: greeting-schema
  namespace: default
spec:
  version: "1"
  groupId: kafka-apicurio-sample  # namespace
  artifactId: simple-avro-maven-topic  # topic name
  name: greeting
  description: "Avro record for Greeting entity"
  type: AVRO
  labels:
  - avro
  - kafka
  content: |
    {
      "type": "record",
      "name": "Greeting",
      "fields": [
        {
          "name": "Message",
          "type": "string"
        },
        {
          "name": "Time",
          "type": "long"
        }
      ]
    }

The schema is successfully deployed.
But I found the following 409 Failure in the log:

kubectl logs  deployments/apicurio-registry-kube-sync -f

2022-11-02 01:26:39,412 INFO  [io.jav.ope.pro.EventDispatcher] (EventHandler-artifactcontroller) Kubernetes exception 409 Failure executing: PUT at: https://10.96.0.1/apis/artifact.apicur.io/v1alpha1/namespaces/default/artifacts/greeting-schema. Message: Operation cannot be fulfilled on artifacts.artifact.apicur.io "greeting-schema": the object has been modified; please apply your changes to the latest version and try again. Received status: Status(apiVersion=v1, code=409, details=StatusDetails(causes=[], group=artifact.apicur.io, kind=artifacts, name=greeting-schema, retryAfterSeconds=null, uid=null, additionalProperties={}), kind=Status, message=Operation cannot be fulfilled on artifacts.artifact.apicur.io "greeting-schema": the object has been modified; please apply your changes to the latest version and try again, metadata=ListMeta(_continue=null, remainingItemCount=null, resourceVersion=null, selfLink=null, additionalProperties={}), reason=Conflict, status=Failure, additionalProperties={}). during event processing, ExecutionScope{events=[CustomResourceEvent{action=MODIFIED, resource=[ name=greeting-schema, kind=Artifact, apiVersion=artifact.apicur.io/v1alpha1 ,resourceVersion=85773, markedForDeletion: false ]}], customResource uid: 15c0dd7e-aec3-4f77-88fe-c0b3bff68548, version: 85773} failed

Why is this happening?

This is the got result.

$ kubectl get artifacts.artifact.apicur.io greeting-schema -o yaml --show-managed-fields

apiVersion: artifact.apicur.io/v1alpha1
kind: Artifact
metadata:
  creationTimestamp: "2022-11-02T01:26:38Z"
  finalizers:
  - artifacts.artifact.apicur.io/finalizer
  generation: 3
  labels:
    apicur.io/artifactId: simple-avro-maven-topic
    apicur.io/groupId: kafka-apicurio-sample
    apicur.io/version: "1"
  managedFields:
  - apiVersion: artifact.apicur.io/v1alpha1
    fieldsType: FieldsV1
    fieldsV1:
      f:spec:
        f:artifactId: {}
        f:content: {}
        f:description: {}
        f:groupId: {}
        f:labels: {}
        f:name: {}
        f:type: {}
        f:version: {}
    manager: kubectl
    operation: Apply
    time: "2022-11-02T01:26:38Z"
  - apiVersion: artifact.apicur.io/v1alpha1
    fieldsType: FieldsV1
    fieldsV1:
      f:metadata:
        f:finalizers:
          .: {}
          v:"artifacts.artifact.apicur.io/finalizer": {}
        f:labels:
          .: {}
          f:apicur.io/artifactId: {}
          f:apicur.io/groupId: {}
          f:apicur.io/version: {}
      f:spec:
        f:contentId: {}
        f:globalId: {}
        f:modifiedBy: {}
        f:modifiedOn: {}
        f:properties: {}
        f:state: {}
    manager: okhttp
    operation: Update
    time: "2022-11-02T01:26:39Z"
  - apiVersion: artifact.apicur.io/v1alpha1
    fieldsType: FieldsV1
    fieldsV1:
      f:status:
        .: {}
        f:artifactId: {}
        f:globalId: {}
        f:groupId: {}
        f:status: {}
        f:version: {}
    manager: okhttp
    operation: Update
    subresource: status
    time: "2022-11-02T01:26:39Z"
  name: greeting-schema
  namespace: default
  resourceVersion: "85776"
  uid: 15c0dd7e-aec3-4f77-88fe-c0b3bff68548
spec:
  artifactId: simple-avro-maven-topic
  content: |
    {
      "type": "record",
      "name": "Greeting",
      "fields": [
        {
          "name": "Message",
          "type": "string"
        },
        {
          "name": "Time",
          "type": "long"
        }
      ]
    }
  contentId: 15
  description: Avro record for Greeting entity
  globalId: 16
  groupId: kafka-apicurio-sample
  labels:
  - avro
  - kafka
  modifiedBy: ""
  modifiedOn: 2022-11-02T01:10:39+0000
  name: greeting
  properties: {}
  state: ENABLED
  type: AVRO
  version: "1"
status:
  artifactId: simple-avro-maven-topic
  globalId: 16
  groupId: kafka-apicurio-sample
  status: ready
  version: "1"

Thanks in advance!

[eshepelyuk]

Hello, @LittleWat
But as you can see from yaml output your artifact is ready, it should appear in apicurio registry.
As far as i remember this error is temporarily and eventually is self healing, so you may ignore it.

[LittleWat]

@eshepelyuk Thank you for your reply! I see. Yes, the log level is INFO so we may ignore this.
But I would like to solve this error if possible 🤔 I will read the code deeply.