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https://github.com/balena-os/balena-supervisor.git
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f863075bdc
This healthcheck fails when Supervisor memory usage is above a threshold based on initial memory measurements after device state has settled. Change-type: patch Signed-off-by: Christina Ying Wang <christina@balena.io>
73 lines
2.1 KiB
TypeScript
73 lines
2.1 KiB
TypeScript
import { expect } from 'chai';
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import type { SinonStub } from 'sinon';
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import { stub } from 'sinon';
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import * as process from 'process';
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import * as memory from '~/src/memory';
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import * as deviceState from '~/src/device-state';
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import log from '~/lib/supervisor-console';
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describe('memory.healthcheck', () => {
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let uptimeStub: SinonStub;
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let rssStub: SinonStub;
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let isApplyInProgressStub: SinonStub;
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beforeEach(() => {
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uptimeStub = stub(memory, 'processUptime').returns(20);
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rssStub = stub(process.memoryUsage, 'rss').returns(100);
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isApplyInProgressStub = stub(deviceState, 'isApplyInProgress').returns(
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false,
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);
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});
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afterEach(() => {
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uptimeStub.restore();
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rssStub.restore();
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isApplyInProgressStub.restore();
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});
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it('passes healthcheck if process has not been running for 20s', async () => {
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// @ts-expect-error - initialMemory is read-only
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memory.initialMemory = 0;
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uptimeStub.returns(19);
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expect(await memory.healthcheck()).to.be.true;
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});
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it('passes healthcheck while initial memory not set and sets initial memory', async () => {
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// @ts-expect-error - initialMemory is read-only
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memory.initialMemory = 0;
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expect(await memory.healthcheck()).to.be.true;
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expect(memory.initialMemory).to.equal(100);
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});
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it('passes healthcheck while state apply in progress', async () => {
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// @ts-expect-error - initialMemory is read-only
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memory.initialMemory = 100;
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isApplyInProgressStub.returns(true);
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expect(await memory.healthcheck()).to.be.true;
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});
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it('passes healthcheck if memory usage is below threshold', async () => {
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// @ts-expect-error - initialMemory is read-only
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memory.initialMemory = 100;
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rssStub.returns(150);
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expect(await memory.healthcheck(100)).to.be.true;
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});
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it('fails healthcheck if memory usage is above threshold', async () => {
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// @ts-expect-error - initialMemory is read-only
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memory.initialMemory = 100;
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uptimeStub.returns(61);
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rssStub.returns(250);
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expect(await memory.healthcheck(100)).to.be.false;
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expect(log.info).to.have.been.calledWith(
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`Healthcheck failure - memory usage above threshold after 0h 1m 1s`,
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);
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});
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});
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