117 lines
3.7 KiB
JavaScript
117 lines
3.7 KiB
JavaScript
import EmberObject, { computed, get } from '@ember/object';
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import { alias } from '@ember/object/computed';
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import RollingArray from 'nomad-ui/utils/classes/rolling-array';
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import AbstractStatsTracker from 'nomad-ui/utils/classes/abstract-stats-tracker';
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const percent = (numerator, denominator) => {
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if (!numerator || !denominator) {
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return 0;
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}
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return numerator / denominator;
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};
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const empty = ts => ({ timestamp: ts, used: null, percent: null });
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const AllocationStatsTracker = EmberObject.extend(AbstractStatsTracker, {
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// Set via the stats computed property macro
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allocation: null,
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url: computed('allocation', function() {
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return `/v1/client/allocation/${this.get('allocation.id')}/stats`;
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}),
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append(frame) {
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const timestamp = new Date(Math.floor(frame.Timestamp / 1000000));
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const cpuUsed = Math.floor(frame.ResourceUsage.CpuStats.TotalTicks) || 0;
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this.get('cpu').pushObject({
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timestamp,
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used: cpuUsed,
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percent: percent(cpuUsed, this.get('reservedCPU')),
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});
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const memoryUsed = frame.ResourceUsage.MemoryStats.RSS;
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this.get('memory').pushObject({
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timestamp,
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used: memoryUsed,
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percent: percent(memoryUsed / 1024 / 1024, this.get('reservedMemory')),
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});
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for (var taskName in frame.Tasks) {
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const taskFrame = frame.Tasks[taskName];
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const stats = this.get('tasks').findBy('task', taskName);
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// If for whatever reason there is a task in the frame data that isn't in the
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// allocation, don't attempt to append data for the task.
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if (!stats) continue;
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const frameTimestamp = new Date(Math.floor(taskFrame.Timestamp / 1000000));
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const taskCpuUsed = Math.floor(taskFrame.ResourceUsage.CpuStats.TotalTicks) || 0;
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stats.cpu.pushObject({
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timestamp: frameTimestamp,
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used: taskCpuUsed,
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percent: percent(taskCpuUsed, stats.reservedCPU),
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});
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const taskMemoryUsed = taskFrame.ResourceUsage.MemoryStats.RSS;
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stats.memory.pushObject({
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timestamp: frameTimestamp,
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used: taskMemoryUsed,
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percent: percent(taskMemoryUsed / 1024 / 1024, stats.reservedMemory),
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});
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}
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},
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pause() {
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const ts = new Date();
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this.get('memory').pushObject(empty(ts));
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this.get('cpu').pushObject(empty(ts));
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this.get('tasks').forEach(task => {
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task.memory.pushObject(empty(ts));
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task.cpu.pushObject(empty(ts));
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});
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},
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// Static figures, denominators for stats
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reservedCPU: alias('allocation.taskGroup.reservedCPU'),
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reservedMemory: alias('allocation.taskGroup.reservedMemory'),
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// Dynamic figures, collected over time
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// []{ timestamp: Date, used: Number, percent: Number }
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cpu: computed('allocation', function() {
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return RollingArray(this.get('bufferSize'));
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}),
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memory: computed('allocation', function() {
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return RollingArray(this.get('bufferSize'));
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}),
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tasks: computed('allocation', function() {
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const bufferSize = this.get('bufferSize');
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const tasks = this.get('allocation.taskGroup.tasks') || [];
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return tasks.map(task => ({
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task: get(task, 'name'),
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// Static figures, denominators for stats
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reservedCPU: get(task, 'reservedCPU'),
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reservedMemory: get(task, 'reservedMemory'),
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// Dynamic figures, collected over time
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// []{ timestamp: Date, used: Number, percent: Number }
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cpu: RollingArray(bufferSize),
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memory: RollingArray(bufferSize),
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}));
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}),
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});
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export default AllocationStatsTracker;
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export function stats(allocationProp, fetch) {
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return computed(allocationProp, function() {
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return AllocationStatsTracker.create({
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fetch: fetch.call(this),
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allocation: this.get(allocationProp),
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});
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});
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}
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