xai-org/x-algorithm · error · ConfigFailure

Dataset '$dataset' does not match $datasetRegex.

Error message

Dataset '$dataset' does not match $datasetRegex.

What it means

Dataset names in BotMaker configs must match datasetRegex. validateDataset throws ConfigFailure including the dataset string and pattern when a referenced dataset identifier fails validation.

Source

Thrown at botmaker/src/scala/com/twitter/botmaker/runtime/config/ServiceConfigs.scala:97

    if (funcNameRegex.findFirstIn(funcName).isEmpty) {
      throw ConfigFailure(
        s"Func name '$funcName' does not match $funcNameRegex."
      )
    }
  }

  def validateEndpoint(endpoint: String): Unit = {
    if (endpoint != "ScribeClient"
      && endpointRegex.findFirstIn(endpoint).isEmpty) {
      throw ConfigFailure(
        s"Endpoint '$endpoint' does not match $endpointRegex."
      )
    }
  }

  def validateDataset(dataset: String): Unit = {
    if (datasetRegex.findFirstIn(dataset).isEmpty) {
      throw ConfigFailure(
        s"Dataset '$dataset' does not match $datasetRegex."
      )
    }
  }

  def validateTypeName(typename: String): Unit = {
    if (typeNameRegex.findFirstIn(typename).isEmpty) {
      throw ConfigFailure(
        s"TypeName '$typename' does not match $typeNameRegex."
      )
    }
  }

  def validateTeamName(teamName: String): Unit = {
    if (teamNameRegex.findFirstIn(teamName).isEmpty) {
      throw ConfigFailure(
        s"Team name '$teamName' does not match $teamNameRegex."
      )

View on GitHub (pinned to 24c60942c5)

Solutions

1. Extract just the dataset identifier component and pass that
2. Check datasetRegex in ServiceConfigs for allowed charset (typically lowercase alphanumerics with limited punctuation) and conform
3. Trim whitespace on values read from config files

Example fix

// before
dataset("analytics/ContentScan/daily")

// after
dataset("content_scan_daily")

DATASET_RE = re.compile(r'^[a-z][a-z0-9_]*$')  # mirror datasetRegex
def validDataset(d): return bool(DATASET_RE.match(d.strip()))

def isValidDataset(name: str) -> bool:
    return bool(re.match(r'^[a-z][a-z0-9_]*$', name))

When it happens

Trigger: Passing a dataset name that does not match datasetRegex to a config that validates datasets — e.g. names with uppercase letters, slashes, spaces, or empty string depending on the exact regex.

Common situations: Using full table paths (namespace/dataset/table) where only the dataset name is expected; environment-prefixed dataset names; trailing whitespace from config files.

Related errors

• Event type '$eventType' does not match $eventTypeRegex.
• Field name '$fieldName' does not match $fieldNameRegex.
• Func name '$funcName' does not match $funcNameRegex.
• Endpoint '$endpoint' does not match $endpointRegex.
• TypeName '$typename' does not match $typeNameRegex.

AI-assisted analysis of xai-org/x-algorithm@24c60942c5 (2026-08-28). Data as JSON: /api/errors/7e8c0b73d6d46a7c. Report an issue: GitHub.