chromatic-dispersion: strconv.ParseFloat: parsing "": invalid syntax

[bluecmd]

On SK1 we are seeing a bunch of these logs:

I0430 06:15:49.747251   25034 main.go:118] New gNMI session registered for sender "10.99.6.31"
I0430 06:15:49.800308   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=OCH-1-1-L1]/openconfig-terminal-device:optical-channel/state": {"laser-freq-offset":"817"}
I0430 06:15:49.800942   25034 metrics.go:314] New general laser metric for map[device:OCH-1-1-L1 index:], {InputPower:<nil> LaserBiasCurrent:<nil> OutputPower:<nil>}
I0430 06:15:49.801420   25034 metrics.go:358] New terminal laser metric for map[device:OCH-1-1-L1], {ChromaticDispersion:{Instant:} PolarizationDependentLoss:{Instant:} PolarizationModeDispersion:{Instant:} LaserFrequencyOffset:817}
W0430 06:15:49.801610   25034 main.go:167] Failed to parse metric update: chromatic-dispersion: strconv.ParseFloat: parsing "": invalid syntax
I0430 06:15:49.830199   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=PSU-1-21]/power-supply/state": {"output-power":"QogAAA=="}
I0430 06:15:49.830905   25034 metrics.go:284] New power supply metric for "PSU-1-21": {InputCurrent:NaN InputVoltage:NaN OutputCurrent:NaN OutputVoltage:NaN}
I0430 06:15:49.875855   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=PSU-1-22]/power-supply/state": {"output-power":"QqYAAA=="}
I0430 06:15:49.876085   25034 metrics.go:284] New power supply metric for "PSU-1-22": {InputCurrent:NaN InputVoltage:NaN OutputCurrent:NaN OutputVoltage:NaN}
I0430 06:15:49.876479   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=MCU-1-41]/state": {"memory":{"available":"4250947584"}}
I0430 06:15:49.876652   25034 metrics.go:197] New temperature metric for "MCU-1-41": {Temperature:{Instant:}}
W0430 06:15:49.876739   25034 main.go:167] Failed to parse metric update: strconv.ParseFloat: parsing "": invalid syntax
I0430 06:15:50.766339   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=FAN-1-32]/fan/state": {"speed":5000}
I0430 06:15:50.766767   25034 metrics.go:181] New fan metric for "FAN-1-32": {Speed:5000}
I0430 06:15:50.767106   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=FAN-1-33]/fan/state": {"speed":5000}
I0430 06:15:50.767242   25034 metrics.go:181] New fan metric for "FAN-1-33": {Speed:5000}
I0430 06:15:50.827073   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=PANEL-1-40]/state": {"temperature":{"avg":"34","instant":"34","max":"34","min":"34"}}
I0430 06:15:50.827318   25034 metrics.go:197] New temperature metric for "PANEL-1-40": {Temperature:{Instant:34}}
I0430 06:15:50.827824   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=FAN-1-31]/fan/state": {"speed":5000}
I0430 06:15:50.827976   25034 metrics.go:181] New fan metric for "FAN-1-31": {Speed:5000}
I0430 06:15:54.750094   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=OCH-1-1-L1]/openconfig-terminal-device:optical-channel/state": {"laser-freq-offset":"841"}
I0430 06:15:54.750509   25034 metrics.go:314] New general laser metric for map[device:OCH-1-1-L1 index:], {InputPower:<nil> LaserBiasCurrent:<nil> OutputPower:<nil>}
I0430 06:15:54.750718   25034 metrics.go:358] New terminal laser metric for map[device:OCH-1-1-L1], {ChromaticDispersion:{Instant:} PolarizationDependentLoss:{Instant:} PolarizationModeDispersion:{Instant:} LaserFrequencyOffset:841}
W0430 06:15:54.750893   25034 main.go:167] Failed to parse metric update: chromatic-dispersion: strconv.ParseFloat: parsing "": invalid syntax
I0430 06:15:54.825965   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=PSU-1-22]/power-supply/state": {"output-power":"QqYAAA=="}
I0430 06:15:54.826227   25034 metrics.go:284] New power supply metric for "PSU-1-22": {InputCurrent:NaN InputVoltage:NaN OutputCurrent:NaN OutputVoltage:NaN}
I0430 06:15:54.875808   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=PSU-1-21]/power-supply/state": {"output-power":"QogAAA=="}
I0430 06:15:54.876037   25034 metrics.go:284] New power supply metric for "PSU-1-21": {InputCurrent:NaN InputVoltage:NaN OutputCurrent:NaN OutputVoltage:NaN}
I0430 06:15:54.876313   25034 metrics.go:159] New raw metric for "/openconfig-platform:components/component[name=MCU-1-41]/state": {"memory":{"available":"4250923008"}}
I0430 06:15:54.876463   25034 metrics.go:197] New temperature metric for "MCU-1-41": {Temperature:{Instant:}}
W0430 06:15:54.876568   25034 main.go:167] Failed to parse metric update: strconv.ParseFloat: parsing "": invalid syntax

[bluecmd]

This is likely #12