glanceapp/glance · warning

getting host info: %v

Error message

getting host info: %v

What it means

Non-fatal collection error in pkg/sysinfo: getHostInfo() (hostname/platform detection) failed and is recorded via addErr instead of aborting, so the server-stats widget degrades gracefully. The Info struct is returned with host fields unset and one more message in the combined error.

Source

Thrown at pkg/sysinfo/sysinfo.go:154

		Mountpoints: []MountpointInfo{},
	}

	applyCachedHostInfo := func() {
		info.HostInfoIsAvailable = true
		info.BootTime = cachedHostInfo.bootTime
		info.Hostname = cachedHostInfo.hostname
		info.Platform = cachedHostInfo.platform
	}

	if cachedHostInfo.available {
		applyCachedHostInfo()
	} else {
		hostInfo, err := getHostInfo()
		if err == nil {
			cachedHostInfo = hostInfo
			applyCachedHostInfo()
		} else {
			addErr(fmt.Errorf("getting host info: %v", err))
		}
	}

	coreCount, err := cpu.Counts(true)
	if err == nil {
		loadAvg, err := load.Avg()
		if err == nil {
			info.CPU.LoadIsAvailable = true
			if runtime.GOOS == "windows" {
				// The numbers returned here seem unreliable on Windows. Even with the CPU pegged
				// at close to 50% for multiple minutes, load1 is sometimes way under or way over
				// with no clear pattern. Dividing by core count gives numbers that are way too
				// low so that's likely not necessary as it is with unix.
				info.CPU.Load1Percent = uint8(math.Min(loadAvg.Load1*100, 100))
				info.CPU.Load15Percent = uint8(math.Min(loadAvg.Load15*100, 100))
			} else {
				info.CPU.Load1Percent = uint8(math.Min((loadAvg.Load1/float64(coreCount))*100, 100))
				info.CPU.Load15Percent = uint8(math.Min((loadAvg.Load15/float64(coreCount))*100, 100))

View on GitHub (pinned to 91324e8de7)

Solutions

1. Check the combined error's other components to see how much of sysinfo still succeeded
2. For containers, expose /etc/hostname and /etc/os-release or relax the sandbox
3. Treat as cosmetic if only host metadata is missing and stats you need still render

func isSysinfoHostErr(err error) bool {
	return err != nil && strings.Contains(err.Error(), "getting host info")
}

info, err := sysinfo.Get()
if err != nil {
    // sysinfo aggregates: partial data is still usable, host fields are just unset
    if !info.HostnameSet() { /* skip host panel */ }
    slog.Warn("partial sysinfo", "err", err)
}

When it happens

Trigger: Host introspection failing: hostname lookup error, /etc or WMI/registry read failure depending on OS, or a restricted container where host identity syscalls are blocked.

Common situations: Hardened containers dropping the needed capabilities; /etc/hostname missing in minimal images; Windows systems with WMI service issues.

Related errors

• getting load avg: %v
• getting core count: %v
• getting memory info: %v
• invalid timezone '%s': %v
• fetching containers: %w

AI-assisted analysis of glanceapp/glance@91324e8de7 (2026-08-15). Data as JSON: /api/errors/a80099da4108d5e9. Report an issue: GitHub.