{"record":{"id":"1944c3b9d2dfa34b","repo":"kubernetes/kops","slug":"error-reading-s-v","errorCode":null,"errorMessage":"error reading %s: %v","messagePattern":"error reading (.+?): (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/client/simple/vfsclientset/commonvfs.go","lineNumber":124,"sourceCode":"}\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 {\n\t\tif os.IsNotExist(err) {\n\t\t\treturn nil, err\n\t\t}\n\t\treturn nil, fmt.Errorf(\"error reading %s: %v\", configPath, err)\n\t}\n\n\tobject, _, err := kopscodecs.Decode(data, nil)\n\tif err != nil {\n\t\treturn nil, fmt.Errorf(\"error parsing %s: %v\", configPath, err)\n\t}\n\treturn object, nil\n}\n\nfunc (c *VFSClientBase) writeConfig(ctx context.Context, cluster *kops.Cluster, configPath vfs.Path, o runtime.Object, writeOptions ...vfs.WriteOption) error {\n\tdata, err := c.serialize(o)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"error marshaling object: %v\", err)\n\t}\n\n\tcreate := false\n\tfor _, writeOption := range writeOptions {\n\t\tswitch writeOption {","sourceCodeStart":106,"sourceCodeEnd":142,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/pkg/client/simple/vfsclientset/commonvfs.go#L106-L142","documentation":"readConfig() failed to read the raw bytes of the object file from the VFS path, and the failure was not os.IsNotExist (that is propagated as a sentinel for Find to convert to nil,nil). The path and underlying storage error are included in the message.","triggerScenarios":"Find/Get/readAll path where configPath.ReadFile(ctx) fails for reasons like AccessDenied, NoSuchBucket, connection reset, or permission errors on the file backend.","commonSituations":"Wrong KOPS_STATE_STORE bucket or region; revoked IAM credentials mid-operation; private object readable only by another account; S3/GCS outage or throttling.","solutions":["Read the wrapped cause (%v) to identify the exact storage error.","Verify credentials and IAM read permissions on the state bucket.","Confirm the state store URL and region are correct.","Retry with backoff for transient network/throttling errors."],"exampleFix":"// before\nexport KOPS_STATE_STORE=s3://old-bucket\n// after\nexport KOPS_STATE_STORE=s3://my-cluster-state\naws s3 ls s3://my-cluster-state/  # confirm readable before running kops","handlingStrategy":"retry","validationCode":"if err := verifyStateStoreAccess(ctx, stateStore); err != nil {\n    return fmt.Errorf(\"state store not readable: %w\", err)\n}","typeGuard":null,"tryCatchPattern":"o, err := client.Find(ctx, name)\nif err != nil {\n    if isRetryableStorageError(err) { return retryWithBackoff(...) }\n    return fmt.Errorf(\"cannot read state for %q: %w\", name, err)\n}","preventionTips":["Verify credentials, bucket, and region before running kops operations.","Retry transient storage errors with backoff.","Check `aws s3 ls`/`gsutil ls` access as a preflight."],"tags":["vfs","storage","read","state-store"],"backgroundTag":"state-store-read-failed","analyzedSha":"4c8573c808a73d578c5eadc86d410646ea0b0d73","analyzedAt":"2026-09-05T04:13:19.212Z","contentChangedAt":"2026-09-05T04:13:19.212Z","schemaVersion":2},"datasetVersion":"2026-09-12T07:17:12.445Z"}