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import statusCodes from '../../lib/utils/http_status';
import { bytesToMiB } from '../../lib/utils/number_utils';
import MemoryGraph from '../../vue_shared/components/memory_graph';
import MRWidgetService from '../services/mr_widget_service';
export default {
name: 'MemoryUsage',
props: {
metricsUrl: { type: String, required: true },
},
data() {
return {
memoryFrom: 0,
memoryTo: 0,
memoryMetrics: [],
deploymentTime: 0,
hasMetrics: false,
loadFailed: false,
loadingMetrics: true,
backOffRequestCounter: 0,
};
},
components: {
'mr-memory-graph': MemoryGraph,
},
computed: {
shouldShowLoading() {
return this.loadingMetrics && !this.hasMetrics && !this.loadFailed;
},
shouldShowMemoryGraph() {
return !this.loadingMetrics && this.hasMetrics && !this.loadFailed;
},
shouldShowLoadFailure() {
return !this.loadingMetrics && !this.hasMetrics && this.loadFailed;
},
shouldShowMetricsUnavailable() {
return !this.loadingMetrics && !this.hasMetrics && !this.loadFailed;
},
memoryChangeType() {
const memoryTo = Number(this.memoryTo);
const memoryFrom = Number(this.memoryFrom);
if (memoryTo > memoryFrom) {
return 'increased';
} else if (memoryTo < memoryFrom) {
return 'decreased';
}
return 'unchanged';
},
},
methods: {
getMegabytes(bytesString) {
const valueInBytes = Number(bytesString).toFixed(2);
return (bytesToMiB(valueInBytes)).toFixed(2);
},
computeGraphData(metrics, deploymentTime) {
this.loadingMetrics = false;
const { memory_before, memory_after, memory_values } = metrics;
// Both `memory_before` and `memory_after` objects
// have peculiar structure where accessing only a specific
// index yeilds correct value that we can use to show memory delta.
if (memory_before.length > 0) {
this.memoryFrom = this.getMegabytes(memory_before[0].value[1]);
}
if (memory_after.length > 0) {
this.memoryTo = this.getMegabytes(memory_after[0].value[1]);
}
if (memory_values.length > 0) {
this.hasMetrics = true;
this.memoryMetrics = memory_values[0].values;
this.deploymentTime = deploymentTime;
}
},
loadMetrics() {
gl.utils.backOff((next, stop) => {
MRWidgetService.fetchMetrics(this.metricsUrl)
.then((res) => {
if (res.status === statusCodes.NO_CONTENT) {
this.backOffRequestCounter = this.backOffRequestCounter += 1;
/* eslint-disable no-unused-expressions */
this.backOffRequestCounter < 3 ? next() : stop(res);
} else {
stop(res);
}
})
.catch(stop);
})
.then((res) => {
if (res.status === statusCodes.NO_CONTENT) {
return res;
}
return res.json();
})
.then((res) => {
this.computeGraphData(res.metrics, res.deployment_time);
return res;
})
.catch(() => {
this.loadFailed = true;
this.loadingMetrics = false;
});
},
},
mounted() {
this.loadingMetrics = true;
this.loadMetrics();
},
template: `
<div class="mr-info-list clearfix mr-memory-usage js-mr-memory-usage">
<p
v-if="shouldShowLoading"
class="usage-info js-usage-info usage-info-loading">
<i
class="fa fa-spinner fa-spin usage-info-load-spinner"
aria-hidden="true" />Loading deployment statistics.
</p>
<p
v-if="shouldShowMemoryGraph"
class="usage-info js-usage-info">
Memory usage <b>{{memoryChangeType}}</b> from {{memoryFrom}}MB to {{memoryTo}}MB
</p>
<p
v-if="shouldShowLoadFailure"
class="usage-info js-usage-info usage-info-failed">
Failed to load deployment statistics.
</p>
<p
v-if="shouldShowMetricsUnavailable"
class="usage-info js-usage-info usage-info-unavailable">
Deployment statistics are not available currently.
</p>
<mr-memory-graph
v-if="shouldShowMemoryGraph"
:metrics="memoryMetrics"
:deploymentTime="deploymentTime"
height="25"
width="100" />
</div>
`,
};
|
