pingsource-controller Operation cannot be fulfilled on deployments.apps "pingsource-mt-adapter"

[JunfeiZhang]

Describe the bug We keep getting error message from our pingsources

Warning  InternalError                42s (x8 over 26m)    pingsource-controller  Operation cannot be fulfilled on deployments.apps "pingsource-mt-adapter": the object has been modified; please apply your changes to the latest version and try again  

   commit: 4d6e1fc
   duration: 0.05510259
   error: Operation cannot be fulfilled on deployments.apps "pingsource-mt-adapter": the object has been modified; please apply your changes to the latest version and try again
   knative.dev/controller: knative.dev.eventing.pkg.reconciler.pingsource.Reconciler
   knative.dev/key: zs-k8sprofiler/profile-cron-handler.b94424d3-f654-41fb-bbe5-8f947c721319
   knative.dev/kind: sources.knative.dev.PingSource
   knative.dev/pod: eventing-controller-54dcd89dfd-fmmch
   knative.dev/traceid: a392bd29-b5de-4928-8830-613ce138292c
   level: error
   logger: controller
   msg: Reconcile error
   stacktrace: knative.dev/pkg/controller.(*Impl).handleErr
	knative.dev/[email protected]/controller/controller.go:566
knative.dev/pkg/controller.(*Impl).processNextWorkItem
	knative.dev/[email protected]/controller/controller.go:543
knative.dev/pkg/controller.(*Impl).RunContext.func3
	knative.dev/[email protected]/controller/controller.go:491
   ts: 2023-12-06T17:49:05.471Z
}

This message comes in an order "Unable to reconcile the receive adapter" "Returned an error" "Reconcile error"

it's constantly reconciling with around 10% "Reconcile error" and following with success, and don't seems affect the pingsource-mt-adapter pod's status

Expected behavior The eventing-controller should not produce these "Reconcile error" consistently when there is no new change added in the cluster.

Knative release version 1.9.0

[Cali0707]

cc @pierDipi

[pierDipi]

Is this still an issue in recent versions 1.12 and/or 1.11 ?

[pierDipi]

We should try to understand what other controller is modifying the pingsource-mt-adapter deployment.

How did you install Eventing? Using YAML or the operator ?

[github-actions[bot]]

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