{"record":{"id":"bfde3d62abf55838","repo":"VictoriaMetrics/VictoriaMetrics","slug":"missing-columns-in-the-csv-line-q-got-d-columns","errorCode":null,"errorMessage":"missing columns in the csv line %q; got %d columns; want at least %d columns","messagePattern":"missing columns in the csv line %q; got (.+?) columns; want at least (.+?) columns","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"lib/protoparser/csvimport/parser.go","lineNumber":172,"sourceCode":"\t\t\t\t\tValue: sc.Column,\n\t\t\t\t})\n\t\t\t\tcontinue\n\t\t\t}\n\t\t\tmetricName := cd.MetricName\n\t\t\tif metricName == \"\" {\n\t\t\t\tlogger.Panicf(\"BUG: unexpected empty MetricName\")\n\t\t\t}\n\t\t\tvalue, err := fastfloat.Parse(sc.Column)\n\t\t\tif err != nil {\n\t\t\t\tsc.Error = fmt.Errorf(\"cannot parse metric value for %q from %q: %w\", metricName, sc.Column, err)\n\t\t\t}\n\t\t\tmetrics = append(metrics, metric{\n\t\t\t\tName:  metricName,\n\t\t\t\tValue: value,\n\t\t\t})\n\t\t}\n\t\tif col < uint(len(cds)) && sc.Error == nil {\n\t\t\tsc.Error = fmt.Errorf(\"missing columns in the csv line %q; got %d columns; want at least %d columns\", line, col, len(cds))\n\t\t}\n\t\tif sc.Error != nil {\n\t\t\tlogger.Errorf(\"error when parsing csv line %q: %s; skipping this line\", line, sc.Error)\n\t\t\tinvalidLines.Inc()\n\t\t\tcontinue\n\t\t}\n\t\tif len(metrics) == 0 {\n\t\t\tcontinue\n\t\t}\n\t\tr.Metric = metrics[0].Name\n\t\tr.Tags = tags[tagsLen:]\n\t\tr.Value = metrics[0].Value\n\t\tdst = append(dst, r)\n\t\tfor _, m := range metrics[1:] {\n\t\t\tdst = append(dst, Row{\n\t\t\t\tMetric:    m.Name,\n\t\t\t\tTags:      r.Tags,\n\t\t\t\tValue:     m.Value,","sourceCodeStart":154,"sourceCodeEnd":190,"githubUrl":"https://github.com/VictoriaMetrics/VictoriaMetrics/blob/5079fb58f1e8e62113f90c945ad71586c797d770/lib/protoparser/csvimport/parser.go#L154-L190","documentation":"Set as sc.Error in csvimport parseRows when the CSV line contains fewer columns than the declared column descriptors require, so some fields cannot be filled. %q is the whole line, %d the number of columns found, and the last %d the required minimum.","triggerScenarios":"Thrown at lib/protoparser/csvimport/parser.go:172 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Fix the CSV rows to include all columns referenced by the format","Adjust the format descriptors to reference fewer columns"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"5079fb58f1e8e62113f90c945ad71586c797d770","analyzedAt":"2026-09-03T18:10:26.153Z","contentChangedAt":"2026-09-03T18:10:26.153Z","schemaVersion":2},"datasetVersion":"2026-09-08T15:18:49.778Z"}