{"record":{"id":"e27fb8ccb486442f","repo":"kubernetes/kops","slug":"error-rendering-failures-table-v","errorCode":null,"errorMessage":"error rendering failures table: %v","messagePattern":"error rendering failures table: (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"cmd/kops/validate_cluster.go","lineNumber":317,"sourceCode":"\t\t\treturn fmt.Errorf(\"cannot render nodes for %q: %v\", cluster.Name, err)\n\t\t}\n\t}\n\n\tif len(result.Failures) != 0 {\n\t\tfailuresTable := &tables.Table{}\n\t\tfailuresTable.AddColumn(\"KIND\", func(e *validation.ValidationError) string {\n\t\t\treturn e.Kind\n\t\t})\n\t\tfailuresTable.AddColumn(\"NAME\", func(e *validation.ValidationError) string {\n\t\t\treturn e.Name\n\t\t})\n\t\tfailuresTable.AddColumn(\"MESSAGE\", func(e *validation.ValidationError) string {\n\t\t\treturn e.Message\n\t\t})\n\n\t\tfmt.Fprintln(out, \"\\nVALIDATION ERRORS\")\n\t\tif err := failuresTable.Render(result.Failures, out, \"KIND\", \"NAME\", \"MESSAGE\"); err != nil {\n\t\t\treturn fmt.Errorf(\"error rendering failures table: %v\", err)\n\t\t}\n\n\t\tfmt.Fprintf(out, \"\\nValidation Failed\\n\")\n\t} else {\n\t\tfmt.Fprintf(out, \"\\nYour cluster %s is ready\\n\", cluster.Name)\n\t}\n\n\treturn nil\n}\n","sourceCodeStart":299,"sourceCodeEnd":327,"githubUrl":"https://github.com/kubernetes/kops/blob/4c8573c808a73d578c5eadc86d410646ea0b0d73/cmd/kops/validate_cluster.go#L299-L327","documentation":"Thrown by validateClusterOutputTable when rendering the VALIDATION ERRORS table fails. This is the failures section shown only when result.Failures is non-empty (cluster validation found problems), so this error indicates an output-writing problem layered on top of an unhealthy cluster.","triggerScenarios":"`kops validate cluster` with validation failures present, where failuresTable.Render(result.Failures, out, ...) returns an error while writing the KIND/NAME/MESSAGE table.","commonSituations":"Broken pipe to a short-lived consumer (`| head`), full disk, unwritable redirect target while diagnosing an already-failing cluster.","solutions":["Write output to a file instead of a pipe: `kops validate cluster > validation.txt`.","Free disk space or fix permissions on the output target.","Use `--output json` to get failures without table rendering.","Fix the underlying cluster failures listed before the render error."],"exampleFix":"// before\nkops validate cluster | tee validation.log\n// after (avoid SIGPIPE killing the writer)\nkops validate cluster > validation.log 2>&1; cat validation.log","handlingStrategy":"fallback","validationCode":null,"typeGuard":null,"tryCatchPattern":"// Go: fall back to JSON when failure-table rendering breaks\nif err != nil && strings.Contains(err.Error(), \"error rendering failures table\") {\n    return json.NewEncoder(fileOut).Encode(result.Failures)\n}","preventionTips":["In CI, write validation output to files and read them afterward.","Use --output json when you need the failures list programmatically.","Monitor disk space on build agents.","Don't pipe into `head`/`grep -q`-style commands that exit early."],"tags":["kops","cli","table-rendering","output"],"backgroundTag":"table-render-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"}