Cannot delete namespaces #943
Description
Issue
When trying to delete a TemporalNamespace I often encounter issues where the operator gets stuck and fails to reconcile Temporal namespaces.
Logs
│ 2025-06-26T14:35:39Z INFO Starting reconciliation {"controller": "temporalnamespace", "controllerGroup": "temporal.io", "controllerKind": "TemporalNamespace", "TemporalNamespace": {"name":"debugging │
│ ","namespace":"workers"}, "namespace": "workers", "name": "debugging", "reconcileID": "984db7f0-dc94-42d4-9c90-4f37195c34ce"} │
│ 2025-06-26T14:35:39Z INFO Deleting namespace {"controller": "temporalnamespace", "controllerGroup": "temporal.io", "controllerKind": "TemporalNamespace", "TemporalNamespace": {"name":"debugging","na │
│ mespace":"workers"}, "namespace": "workers", "name": "debugging", "reconcileID": "984db7f0-dc94-42d4-9c90-4f37195c34ce"} │
│ 2025-06-26T14:35:39Z DEBUG Connecting to temporal cluster {"controller": "temporalnamespace", "controllerGroup": "temporal.io", "controllerKind": "TemporalNamespace", "TemporalNamespace": {"name":"d │
│ ebugging","namespace":"workers"}, "namespace": "workers", "name": "debugging", "reconcileID": "984db7f0-dc94-42d4-9c90-4f37195c34ce", "address": "active-frontend.temporal:7233"} │
│ 2025-06-26T14:35:39Z INFO try to delete but not found {"controller": "temporalnamespace", "controllerGroup": "temporal.io", "controllerKind": "TemporalNamespace", "TemporalNamespace": {"name":"debug │
│ ging","namespace":"workers"}, "namespace": "workers", "name": "debugging", "reconcileID": "984db7f0-dc94-42d4-9c90-4f37195c34ce", "namespace": "debugging"} │
│ 2025-06-26T14:35:39Z ERROR Reconciler error {"controller": "temporalnamespace", "controllerGroup": "temporal.io", "controllerKind": "TemporalNamespace", "TemporalNamespace": {"name":"debugging","nam │
│ espace":"workers"}, "namespace": "workers", "name": "debugging", "reconcileID": "984db7f0-dc94-42d4-9c90-4f37195c34ce", "error": "unable to patch object: TemporalNamespace.temporal.io \"debugging\" is invali │
│ d: metadata.finalizers: Forbidden: no new finalizers can be added if the object is being deleted, found new finalizers []string{\"foregroundDeletion\"}", "errorCauses": [{"error": "unable to patch object: Te │
│ mporalNamespace.temporal.io \"debugging\" is invalid: metadata.finalizers: Forbidden: no new finalizers can be added if the object is being deleted, found new finalizers []string{\"foregroundDeletion\"}", "e │
│ rrorCauses": [{"error": "unable to patch object: TemporalNamespace.temporal.io \"debugging\" is invalid: metadata.finalizers: Forbidden: no new finalizers can be added if the object is being deleted, found n │
│ ew finalizers []string{\"foregroundDeletion\"}"}]}]} │
│ sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).reconcileHandler │
│ /go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:316 │
│ sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).processNextWorkItem │
│ /go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:263 │
│ sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Start.func2.2 │
│ /go/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:224
Current Workaround
To solve this I usually have to manually remove the finalizer from the TemporalNamespace object and also restart the operator itself as it gets stuck