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metrics.readTimeSeriesReduce.js
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metrics.readTimeSeriesReduce.js
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// Copyright 2017 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
'use strict';
// sample-metadata:
// title: Read Time Series Reduce
// description: Reduces time series data that matches 'compute.googleapis.com/instance/cpu/utilization'.
// usage: node metrics.readTimeSeriesReduce.js your-project-id
function main(projectId) {
// [START monitoring_read_timeseries_reduce]
// Imports the Google Cloud client library
const monitoring = require('@google-cloud/monitoring');
// Creates a client
const client = new monitoring.MetricServiceClient();
async function readTimeSeriesReduce() {
/**
* TODO(developer): Uncomment and edit the following lines of code.
*/
// const projectId = 'YOUR_PROJECT_ID';
const request = {
name: client.projectPath(projectId),
filter: 'metric.type="compute.googleapis.com/instance/cpu/utilization"',
interval: {
startTime: {
// Limit results to the last 20 minutes
seconds: Date.now() / 1000 - 60 * 20,
},
endTime: {
seconds: Date.now() / 1000,
},
},
// Aggregate results per matching instance
aggregation: {
alignmentPeriod: {
seconds: 600,
},
crossSeriesReducer: 'REDUCE_MEAN',
perSeriesAligner: 'ALIGN_MEAN',
},
};
// Writes time series data
const [result] = await client.listTimeSeries(request);
if (result.length === 0) {
console.log('No data');
return;
}
const reductions = result[0].points;
console.log('Average CPU utilization across all GCE instances:');
console.log(` Last 10 min: ${reductions[0].value.doubleValue}`);
console.log(` 10-20 min ago: ${reductions[0].value.doubleValue}`);
}
readTimeSeriesReduce();
// [END monitoring_read_timeseries_reduce]
}
process.on('unhandledRejection', err => {
console.error(err.message);
process.exitCode = 1;
});
main(...process.argv.slice(2));