apache/hadoop · error · IOException

No suitable parser.

Error message

No suitable parser.

What it means

Error "No suitable parser." thrown in apache/hadoop.

Source

Thrown at hadoop-tools/hadoop-rumen/src/main/java/org/apache/hadoop/tools/rumen/JobHistoryParserFactory.java:38

import java.io.IOException;
import java.io.InputStream;

/**
 * {@link JobHistoryParserFactory} is a singleton class that attempts to
 * determine the version of job history and return a proper parser.
 */
public class JobHistoryParserFactory {
  public static JobHistoryParser getParser(RewindableInputStream ris)
      throws IOException {
    for (VersionDetector vd : VersionDetector.values()) {
      boolean canParse = vd.canParse(ris);
      ris.rewind();
      if (canParse) {
        return vd.newInstance(ris);
      }
    }

    throw new IOException("No suitable parser.");
  }

  public enum VersionDetector {
    Hadoop20() {

      @Override
      public boolean canParse(InputStream input) throws IOException {
        return Hadoop20JHParser.canParse(input);
      }

      @Override
      public JobHistoryParser newInstance(InputStream input) throws IOException {
        return new Hadoop20JHParser(input);
      }
    },

    Current() {

View on GitHub (pinned to 2add963021)

Solutions

1. Feed the parser factory a supported job history file (jhist or recognized log format); no parser matched the input.

When it happens

Trigger: JobHistoryParserFactory cannot find a parser able to read the given job history file, e.g. because the file format/version is unrecognized.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/72740058802127ed. Report an issue: GitHub.