JsonFileStorage🔗
The multimeter.storages.json.JsonFileStorage
exports all Result to the file system using JSON.
Configuration🔗
The only configuration that
multimeter.storages.json.JsonFileStorage.__init__
takes is a path to a directory, where the JSON files will be stored.
Format🔗
The json structure is a single object with fixed attributes:
{
"identifier": "measure-id",
"tags": {
"tag": "value"
},
"meta_data": {},
"schema": {
"metrics": [
{
"key": "cpu_rate_user",
"description": "The rate of the time where the CPU is executing user-space code.",
"unit": "",
"value_type": "float",
"min_value": 0.0,
"max_value": 1.0
},
{
"key": "cpu_rate_system",
"description": "The rate of the time where the CPU is executing system code.",
"unit": "",
"value_type": "float",
"min_value": 0.0,
"max_value": 1.0
}
],
"subjects": [
{
"key": "process",
"description": "The current running process."
}
],
"measures": [
{
"key": "process.cpu_rate_user",
"subject": "process",
"metric": "cpu_rate_user"
},
{
"key": "process.cpu_rate_system",
"subject": "process",
"metric": "cpu_rate_system"
}
]
},
"points": [
{
"datetime": "2021-11-27T18:43:51.033+00:00",
"values": {
"process.cpu_rate_user": 0.8287030088703983,
"process.cpu_rate_system": 0.2367722882486841
}
},
{
"datetime": "2021-11-27T18:43:52.039+00:00",
"values": {
"process.cpu_rate_user": 1.0000167626132233,
"process.cpu_rate_system": 5.469854836835e-05
}
}
],
"marks": [
{
"datetime": "2021-11-27T18:43:51.733+00:00",
"label": "Call X"
}
]
}
identifier🔗
The identifier for the measurement, which created this result.
tags🔗
Tags are user-defined when the measurement is created.
meta_data🔗
Contains the meta data that can be added to the result using add_meta_data().
schema🔗
The schema contains a description of the different values that are measured. Their definition originates the metrics, subjects and measures:
metrics🔗
A list of objects describing the metrics that are included in the results. Each object contains the attributes "key", "description", "unit", "value_type", "min_value" and "max_value".
subjects🔗
A list of objects where each object represents a subject from which the metrics were sampled. Each object contains a "key" and a human-readable "description".
measure🔗
A list of objects representing individual measures describing which metric was sampled for which subject. Each object contains a "key" and references to a "subject" and a "metric".
points🔗
The list of individual measuring points. Each point has an attribute "datetime" containing the datetime (UTC) the values were measured and an attribute "values" with a javascript object, where the keys reference the measures and the values contain the measured values at this time.
marks🔗
The list of timestamps with a mark. Each mark has an attribute "datetime" containing the datetime (UTC) and an attribute "label" which contains the label of the mark, that was given when the mark was made.