apache/hadoop · error · IOException

Expected strtype

Error message

Expected strtype

What it means

Error "Expected strtype" 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/join/Parser.java:105

    private TType type;

    Token(TType type) {
      this.type = type;
    }

    public TType getType() { return type; }
    
    public Node getNode() throws IOException {
      throw new IOException("Expected nodetype");
    }
    
    public double getNum() throws IOException {
      throw new IOException("Expected numtype");
    }
    
    public String getStr() throws IOException {
      throw new IOException("Expected strtype");
    }
  }

  @InterfaceAudience.Public
  @InterfaceStability.Evolving
  public static class NumToken extends Token {
    private double num;
    public NumToken(double num) {
      super(TType.NUM);
      this.num = num;
    }
    public double getNum() { return num; }
  }

  @InterfaceAudience.Public
  @InterfaceStability.Evolving
  public static class NodeToken extends Token {
    private Node node;

View on GitHub (pinned to 2add963021)

Solutions

1. Correct the string literal in the join expression; a quoted string was expected at this position.

When it happens

Trigger: Thrown by Parser when a string literal token was expected in the join expression but a different token type was found. Quote string arguments (such as the join operation name) correctly in the join expression.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/34deb221949fd003. Report an issue: GitHub.