{"record":{"id":"5442ce9f7360179c","repo":"kubernetes/kops","slug":"error-writing-s-v","errorCode":null,"errorMessage":"error writing %s: %v","messagePattern":"error writing (.+?): (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/client/simple/vfsclientset/commonvfs.go","lineNumber":102,"sourceCode":"\n\tif c.validate != nil {\n\t\terr = c.validate(i)\n\t\tif err != nil {\n\t\t\treturn err\n\t\t}\n\t}\n\n\tcreationTimestamp := objectMeta.GetCreationTimestamp()\n\tif creationTimestamp.IsZero() {\n\t\tobjectMeta.SetCreationTimestamp(metav1.NewTime(time.Now().UTC()))\n\t}\n\n\terr = c.writeConfig(ctx, cluster, c.basePath.Join(objectMeta.GetName()), i, vfs.WriteOptionCreate)\n\tif err != nil {\n\t\tif os.IsExist(err) {\n\t\t\treturn err\n\t\t}\n\t\treturn fmt.Errorf(\"error writing %s: %v\", c.kind, err)\n\t}\n\n\treturn nil\n}\n\nfunc (c *VFSClientBase) serialize(o runtime.Object) ([]byte, error) {\n\tvar b bytes.Buffer\n\terr := c.encoder.Encode(o, &b)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error encoding object: %v\", err)\n\t}\n\n\treturn b.Bytes(), nil\n}\n\nfunc (c *VFSClientBase) readConfig(ctx context.Context, configPath vfs.Path) (runtime.Object, error) {\n\tdata, err := configPath.ReadFile(ctx)\n\tif err != nil {","sourceCodeStart":84,"sourceCodeEnd":120,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/pkg/client/simple/vfsclientset/commonvfs.go#L84-L120","documentation":"Create() wrote the new object to VFS with WriteOptionCreate and the write failed with an error other than os.IsExist (which would be returned as-is). The underlying storage error is wrapped as 'error writing <kind>'.","triggerScenarios":"Create on a vfs clientset where writeConfig's WriteOptionCreate write fails due to permissions, network, throttling, or backend errors.","commonSituations":"Bucket write permissions missing (s3:PutObject denied); S3 throttling during `kops create cluster`; transient network failure; KMS/bucket policy blocking uploads.","solutions":["Inspect the wrapped cause (%v) for the storage-level error.","Check bucket write IAM permissions / KMS key policy.","Retry on transient throttling/network errors with backoff.","Verify the bucket is writable and in the expected region: `aws s3 cp test s3://bucket/`."],"exampleFix":null,"handlingStrategy":"retry","validationCode":"if err := verifyStateStoreWriteAccess(ctx, stateStore); err != nil {\n    return fmt.Errorf(\"state store not writable: %w\", err)\n}","typeGuard":null,"tryCatchPattern":"err := client.Create(ctx, obj)\nif err != nil && !os.IsExist(err) {\n    if isRetryable(err) { return retryWithBackoff(...) }\n    return fmt.Errorf(\"create failed: %w\", err)\n}","preventionTips":["Confirm bucket PutObject permissions and KMS policies before creating clusters.","Add exponential backoff for S3/GCS throttling.","Check bucket exists and is in the expected region."],"tags":["vfs","storage","write","state-store"],"backgroundTag":"state-store-write-failed","analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T12:17:11.808Z"}