apache/hadoop · error · IllegalArgumentException

Negative mapreduce.input.sequencefileinputfilter.frequency:

Error message

Negative mapreduce.input.sequencefileinputfilter.frequency: {frequency}

What it means

Error "Negative mapreduce.input.sequencefileinputfilter.frequency: {frequency}" thrown in apache/hadoop.

Source

Thrown at hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/SequenceFileInputFilter.java:164

    }
  }

  /** This class returns a percentage of records
   * The percentage is determined by a filtering frequency <i>f</i> using
   * the criteria record# % f == 0.
   * For example, if the frequency is 10, one out of 10 records is returned.
   */
  public static class PercentFilter extends FilterBase {
    private int frequency;
    private int count;

    /** set the frequency and stores it in conf
     * @param conf configuration
     * @param frequency filtering frequencey
     */
    public static void setFrequency(Configuration conf, int frequency) {
      if (frequency <= 0)
        throw new IllegalArgumentException(
          "Negative " + FILTER_FREQUENCY + ": " + frequency);
      conf.setInt(FILTER_FREQUENCY, frequency);
    }
        
    public PercentFilter() { }
        
    /** configure the filter by checking the configuration
     * 
     * @param conf configuration
     */
    public void setConf(Configuration conf) {
      this.frequency = conf.getInt(FILTER_FREQUENCY, 10);
      if (this.frequency <= 0) {
        throw new RuntimeException(
          "Negative "+FILTER_FREQUENCY + ": " + this.frequency);
      }
      this.conf = conf;
    }

View on GitHub (pinned to 2add963021)

Solutions

1. Set mapreduce.input.sequencefileinputfilter.frequency to a non-negative integer.

When it happens

Trigger: Thrown at hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/input/SequenceFileInputFilter.java:164 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/9be8f391ad0bdcc4. Report an issue: GitHub.