apache/hadoop · error · RuntimeException

Data [{}] doesn't have a suffix from known suffixes [{}]

Error message

Data [{}] doesn't have a suffix from known suffixes [{}]

What it means

Error "Data [{}] doesn't have a suffix from known suffixes [{}]" thrown in apache/hadoop.

Source

Thrown at hadoop-tools/hadoop-rumen/src/main/java/org/apache/hadoop/tools/rumen/anonymization/WordListAnonymizerUtility.java:84

   * 
   * @throws RuntimeException if the data doesn't have a suffix. 
   *         Use {@link #hasSuffix(String, String[])} to make sure that the 
   *         given data has a suffix.
   */
  public static String[] extractSuffix(String data, String[] suffixes) {
    // check if they end in known suffixes
    String suffix = "";
    for (String ks : suffixes) {
      if (data.endsWith(ks)) {
        suffix = ks;
        // stripe off the suffix which will get appended later
        data = data.substring(0, data.length() - suffix.length());
        return new String[] {data, suffix};
      }
    }
    
    // throw exception
    throw new RuntimeException("Data [" + data + "] doesn't have a suffix from" 
        + " known suffixes [" + StringUtils.join(suffixes, ',') + "]");
  }
  
  /**
   * Checks if the given data is known. This API uses {@link #KNOWN_WORDS} to
   * detect if the given data is a commonly used (so called 'known') word.
   */
  public static boolean isKnownData(String data) {
    return isKnownData(data, KNOWN_WORDS);
  }
  
  /**
   * Checks if the given data is known.
   */
  public static boolean isKnownData(String data, String[] knownWords) {
    // check if the data is known content
    //TODO [Chunking] Do this for sub-strings of data
    

View on GitHub (pinned to 2add963021)

Solutions

1. Add the data's suffix to the known suffix list, or provide input whose suffix is recognized.

When it happens

Trigger: WordListAnonymizerUtility receives data whose file suffix is not in the known suffix list, so it cannot pick an anonymization strategy.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/e31acef702d3b7f6. Report an issue: GitHub.