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// Helper functions for testing time-series collections.
var TimeseriesTest = class {
/**
* Returns whether time-series collections are supported.
*/
static timeseriesCollectionsEnabled(conn) {
return assert
.commandWorked(conn.adminCommand({getParameter: 1, featureFlagTimeseriesCollection: 1}))
.featureFlagTimeseriesCollection.value;
}
/**
* Adjusts the values in 'fields' by a random amount.
* Ensures that the new values stay in the range [0, 100].
*/
static updateUsages(fields) {
for (const field in fields) {
fields[field] += Math.round(Random.genNormal(0, 1));
fields[field] = Math.max(fields[field], 0);
fields[field] = Math.min(fields[field], 100);
}
}
/**
* Returns a random element from an array.
*/
static getRandomElem(arr) {
return arr[Random.randInt(arr.length)];
}
static getRandomUsage() {
return Random.randInt(101);
}
/**
* Generates time-series data based on the TSBS document-per-event format.
*
* https://github.com/timescale/tsbs/blob/7508b34755e05f55a14ec4bac2913ae758b4fd78/cmd/tsbs_generate_data/devops/cpu.go
* https://github.com/timescale/tsbs/blob/7508b34755e05f55a14ec4bac2913ae758b4fd78/cmd/tsbs_generate_data/devops/host.go
*/
static generateHosts(numHosts) {
const hosts = new Array(numHosts);
const regions = [
"ap-northeast-1",
"ap-southeast-1",
"ap-southeast-2",
"eu-central-1",
"eu-west-1",
"sa-east-1",
"us-east-1",
"us-west-1",
"us-west-2",
];
const dataCenters = [
[
"ap-northeast-1a",
"ap-northeast-1c",
],
[
"ap-southeast-1a",
"ap-southeast-1b",
],
[
"ap-southeast-2a",
"ap-southeast-2b",
],
[
"eu-central-1a",
"eu-central-1b",
],
[
"eu-west-1a",
"eu-west-1b",
"eu-west-1c",
],
[
"sa-east-1a",
"sa-east-1b",
"sa-east-1c",
],
[
"us-east-1a",
"us-east-1b",
"us-east-1c",
"us-east-1e",
],
[
"us-west-1a",
"us-west-1b",
],
[
"us-west-2a",
"us-west-2b",
"us-west-2c",
],
];
for (let i = 0; i < hosts.length; i++) {
const regionIndex = Random.randInt(regions.length);
hosts[i] = {
fields: {
usage_guest: TimeseriesTest.getRandomUsage(),
usage_guest_nice: TimeseriesTest.getRandomUsage(),
usage_idle: TimeseriesTest.getRandomUsage(),
usage_iowait: TimeseriesTest.getRandomUsage(),
usage_irq: TimeseriesTest.getRandomUsage(),
usage_nice: TimeseriesTest.getRandomUsage(),
usage_softirq: TimeseriesTest.getRandomUsage(),
usage_steal: TimeseriesTest.getRandomUsage(),
usage_system: TimeseriesTest.getRandomUsage(),
usage_user: TimeseriesTest.getRandomUsage(),
},
tags: {
arch: TimeseriesTest.getRandomElem(["x64", "x86"]),
datacenter: TimeseriesTest.getRandomElem(dataCenters[regionIndex]),
hostname: "host_" + i,
hostid: i,
os: TimeseriesTest.getRandomElem(
["Ubuntu15.10", "Ubuntu16.10", "Ubuntu16.04LTS"]),
rack: Random.randInt(100).toString(),
region: regions[regionIndex],
service: Random.randInt(20).toString(),
service_environment:
TimeseriesTest.getRandomElem(["production", "staging", "test"]),
service_version: Random.randInt(2).toString(),
team: TimeseriesTest.getRandomElem(["CHI", "LON", "NYC", "SF"]),
}
};
}
return hosts;
}
};
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