crowdsecurity/crowdsec · error

no matching files for pattern

Error message

no matching files for pattern %s

What it means

ConfigureByDSN expands the file glob of the file:// DSN and requires at least one match. It fires when filepath.Glob returns no files for the pattern (typo, wrong path, files not yet present), aborting acquisition setup.

Solutions

1. Fix the glob pattern in the DSN to match existing files
2. Verify the path relative to the crowdsec working directory
3. Create the log files, or use a pattern matching rotated files too (e.g. /var/log/myapp.log*)

When it happens

Trigger: Thrown at pkg/acquisition/modules/file/config.go:215 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of crowdsecurity/crowdsec@909b515798 (2026-09-06). Data as JSON: /api/errors/ce70aa428e3e9a77. Report an issue: GitHub.

Appendix: source

Thrown at pkg/acquisition/modules/file/config.go:215

			default:
				return fmt.Errorf("unknown parameter %s", key)
			}
		}
	}

	s.config.Labels = labels
	s.config.Mode = configuration.CAT_MODE
	s.config.UniqueId = uuid

	s.logger.Debugf("Will try pattern %s", args[0])

	files, err := filepath.Glob(args[0])
	if err != nil {
		return fmt.Errorf("glob failure: %w", err)
	}

	if len(files) == 0 {
		return fmt.Errorf("no matching files for pattern %s", args[0])
	}

	if len(files) > 1 {
		s.logger.Infof("Will read %d files", len(files))
	}

	for _, file := range files {
		s.logger.Infof("Adding file %s to filelist", file)
		s.files = append(s.files, file)
	}

	return nil
}

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