apache/hadoop · error · InvalidObjectException

Invalid mode in FsPermission

Error message

Invalid mode in FsPermission

What it means

Error "Invalid mode in FsPermission" thrown in apache/hadoop.

Source

Thrown at hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/permission/FsPermission.java:492

    return new FsPermission((short)n);
  }
  
  private static class ImmutableFsPermission extends FsPermission {
    private static final long serialVersionUID = 0x1bab54bd;
    public ImmutableFsPermission(short permission) {
      super(permission);
    }

    @Override
    public void readFields(DataInput in) throws IOException {
      throw new UnsupportedOperationException();
    }
  }

  @Override
  public void validateObject() throws InvalidObjectException {
    if (null == useraction || null == groupaction || null == otheraction) {
      throw new InvalidObjectException("Invalid mode in FsPermission");
    }
    if (null == stickyBit) {
      throw new InvalidObjectException("No sticky bit in FsPermission");
    }
  }
}

View on GitHub (pinned to 2add963021)

Solutions

1. Provide a valid POSIX mode character for the permission triplet (r, w, x or '-').
2. Validate the mode string before constructing FsPermission.

When it happens

Trigger: Thrown when FsPermission is constructed or parsed with a mode value outside the valid range of Unix permission bits.

Common situations: See trigger scenarios.

AI-assisted analysis of apache/hadoop@2add963021 (2026-08-22). Data as JSON: /api/errors/3e652fa94f5c9737. Report an issue: GitHub.