juicedata/juicefs · error

failed to write system info file %s: %v

Error message

failed to write system info file %s: %v

What it means

The collected platform/architecture/system-info string could not be written to the system-info.log file created inside the debug output directory. Fires when the WriteString call fails, typically due to disk-full conditions, I/O errors, or the file having been closed or become unwritable mid-operation.

Source

Thrown at cmd/debug.go:460

		defer cancel()
		return exec.CommandContext(timeoutCtx, copyArgs[0], copyArgs[1:]...).Run()
	}
}

func collectSysInfo(ctx *cli.Context, currDir string) error {
	sysInfo := utils.GetSysInfo()
	result := fmt.Sprintf(`Platform: 
%s %s
%s`, runtime.GOOS, runtime.GOARCH, sysInfo)

	sysPath := filepath.Join(currDir, "system-info.log")
	sysFile, err := os.Create(sysPath)
	if err != nil {
		return fmt.Errorf("failed to create system info file %s: %v", sysPath, err)
	}
	defer closeFile(sysFile)
	if _, err = sysFile.WriteString(result); err != nil {
		return fmt.Errorf("failed to write system info file %s: %v", sysPath, err)
	}

	fmt.Printf("\n%s\n", result)
	return nil
}

func collectSpecialFile(ctx *cli.Context, amp string, currDir string, requireRootPrivileges bool, wg *sync.WaitGroup) error {
	prefixed := true
	configName := ".jfs.config"
	_ = utils.WithTimeout(context.TODO(), func(context.Context) error {
		if !utils.Exists(filepath.Join(amp, configName)) {
			configName = ".config"
			prefixed = false
		}
		return nil
	}, 3*time.Second)
	if err := copyFile(filepath.Join(amp, configName), filepath.Join(currDir, "config.txt"), requireRootPrivileges); err != nil {
		return fmt.Errorf("failed to get volume config %s: %v", configName, err)

View on GitHub (pinned to c9a67b23e8)

Solutions

1. Free space or choose another output directory, then re-run `juicefs debug`

When it happens

Trigger: Thrown at cmd/debug.go:460 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of juicedata/juicefs@c9a67b23e8 (2026-09-06). Data as JSON: /api/errors/09b622c0d74b2872. Report an issue: GitHub.