Availability_template - does not work?

Configuration
1

There is a sensor:

        value_template: >-
          {{ (states('sensor.rpi_1_netdata_cpu_softirq') | float +
              states('sensor.rpi_1_netdata_cpu_user') | float +
              states('sensor.rpi_1_netdata_cpu_system') | float +
              states('sensor.rpi_1_netdata_cpu_iowait') | float +
              states('sensor.rpi_1_netdata_cpu_irq') | float +
              states('sensor.rpi_1_netdata_cpu_nice') | float +
              states('sensor.rpi_1_netdata_cpu_steal') | float) | round(1) }}

        availability_template: >-
          {% set SOURCE_SENSOR_MASK = "sensor.rpi_1_netdata_cpu_" -%}
          {{ not states(SOURCE_SENSOR_MASK + "softirq") in ["unavailable","unknown"] and
             not states(SOURCE_SENSOR_MASK + "user") in ["unavailable","unknown"] and
             not states(SOURCE_SENSOR_MASK + "system") in ["unavailable","unknown"] and
             not states(SOURCE_SENSOR_MASK + "iowait") in ["unavailable","unknown"] and
             not states(SOURCE_SENSOR_MASK + "irq") in ["unavailable","unknown"] and
             not states(SOURCE_SENSOR_MASK + "nice") in ["unavailable","unknown"] and
             not states(SOURCE_SENSOR_MASK + "steal") in ["unavailable","unknown"] }}

It returns a total CPU load retrieved from Netdata.

When Netdata node is unavailable, then there are warnings in Log:

2021-11-27 01:43:35 WARNING (MainThread) [homeassistant.helpers.template] Template warning: 'float' got invalid input 'unavailable' when rendering template '{{ (states('sensor.rpi_1_netdata_cpu_softirq') | float +
states('sensor.rpi_1_netdata_cpu_user') | float +
states('sensor.rpi_1_netdata_cpu_system') | float +
states('sensor.rpi_1_netdata_cpu_iowait') | float +
states('sensor.rpi_1_netdata_cpu_irq') | float +
states('sensor.rpi_1_netdata_cpu_nice') | float +
states('sensor.rpi_1_netdata_cpu_steal') | float) | round(1) }}' but no default was specified. Currently 'float' will return '0', however this template will fail to render in Home Assistant core 2022.1

But I provided availability_template to avoid this!
Why do these errors occur?

1 Like
2

Templates resolve no matter what. Next version the availability will actually stop the state from resolving.

3

Thank you Petro,

Does that mean:

  1. Now I should provide a check with using “is_number()” in “value_template”.
  2. Starting from 2021.12 this check will not be necessary since “availability_template” will be executed first and if it returns FALSE then “value_template” will not be executed.

?

4

It’s just a warning until 2021.12, so you might as well live with it until then, where it shouldn’t be an issue anymore.

5

Not clear what you mean.
After 2012.12 it will be not a warning - it will be an error.
Any warning means “look at this code with attention”.

6

It won’t execute the value_template, so there’s nothing to worry about. Ignore it.

7

Will it happen at 2021.12 ?

8

I feel were going in circles and I’m saying the same thing. In 2021.12 value_template will not resolve when availability is unavailable.

9

You said “next version” - and I am clarifying “is it 2021.12”.

10

Unrelated to the original question but might be useful to you:

Create a group containing the 7 sensors. It will allow you to simplify the templates.

expand('group.net_data') | map(attribute='state') | map('float', 0) | sum | round(1) }}

expand('group.net_data') | selectattr('state', 'in', ['unavailable', 'unknown']) | list | count == 0 }}
1 Like
11

Great, Taras!))