missing tag error on influxdb

[fsgrazzutti]

hello,
I just installed influx db on the same RPi where mycontroller runs, just for testing.

I get this error, no matter which variable I am sending:
2020-11-12 11:43:01,414 ERROR [mc-th-pool-4] [org.mycontroller.standalone.externalserver.driver.DriverInfluxDB:58] Exception, fan_controller_7_ambient_1_temperature,7_1_temperature value=26 1605177781357000000
org.influxdb.InfluxDBException$UnableToParseException: unable to parse 'fan_controller_7_ambient_1_temperature,7_1_temperature value=26 1605177781357000000': missing tag value

this is the settings screenshot

any help is appreciated.
Franco

[fsgrazzutti]

I just added the tag host=mycontroller and now it works, but still I would like to understand why it´s needed.

[jkandasa]

@fsgrazzutti I think when I design I might thought tag is a mandatory field. But looks like it is not.

https://github.com/mycontroller-org/mycontroller-v1-legacy/blob/development/modules/core/src/main/java/org/mycontroller/standalone/externalserver/driver/DriverInfluxDB.java#L51

data
                    .append(getVariableKey(sensorVariable, _config.getKeyFormat()))
                    .append(",").append(getVariableKey(sensorVariable, _config.getTags()))
                    .append(" value=").append(getValue(sensorVariable))
                    .append(" ").append(sensorVariable.getTimestamp()).append("000000");

[fsgrazzutti]

@jkandasa thank you !