LHCI continuously failing with PROTOCOL_TIMEOUT error

Logs for the failed process Environment: cypress/browsers:node14.7.0-chrome84 I’ve tried running it with --disable-storage-reset option but that doesn’t seem to work in this case. Couldn’t find any other reason as the same config was working earlier but has now failed continuously for 3-4 times

Running Lighthouse 3 time(s) on http://localhost:41961/index.html
Run #1...failed!
Error: Lighthouse failed with exit code 1
    at ChildProcess.<anonymous> (/usr/local/lib/node_modules/@lhci/cli/src/collect/node-runner.js:103:21)
    at ChildProcess.emit (events.js:314:20)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:276:12)
Tue, 25 Aug 2020 16:44:03 GMT ChromeLauncher Waiting for browser.
Tue, 25 Aug 2020 16:44:03 GMT ChromeLauncher Waiting for browser...
Tue, 25 Aug 2020 16:44:03 GMT ChromeLauncher Waiting for browser.....
Tue, 25 Aug 2020 16:44:04 GMT ChromeLauncher Waiting for browser.......
Tue, 25 Aug 2020 16:44:04 GMT ChromeLauncher Waiting for browser.........
Tue, 25 Aug 2020 16:44:04 GMT ChromeLauncher Waiting for browser.........✓
Tue, 25 Aug 2020 16:44:04 GMT config:warn IFrameElements gatherer requested, however no audit requires it.
Tue, 25 Aug 2020 16:44:04 GMT status Connecting to browser
Tue, 25 Aug 2020 16:44:04 GMT status Resetting state with about:blank
Tue, 25 Aug 2020 16:44:04 GMT status Benchmarking machine
Tue, 25 Aug 2020 16:44:05 GMT status Initializing…
Tue, 25 Aug 2020 16:44:05 GMT status Running defaultPass pass CSSUsage, JsUsage, ViewportDimensions, RuntimeExceptions, ConsoleMessages, AnchorElements, ImageElements, LinkElements, MetaElements, ScriptElements, IFrameElements, MainDocumentContent, AppCacheManifest, Doctype, DOMStats, OptimizedImages, PasswordInputsWithPreventedPaste, ResponseCompression, TagsBlockingFirstPaint, FontSize, EmbeddedContent, RobotsTxt, TapTargets, Accessibility, TraceElements
Tue, 25 Aug 2020 16:44:05 GMT status Resetting state with about:blank
Tue, 25 Aug 2020 16:44:05 GMT status Setting up network for the pass trace
Tue, 25 Aug 2020 16:44:05 GMT status Cleaning browser cache
Tue, 25 Aug 2020 16:44:05 GMT status Beginning devtoolsLog and trace
Tue, 25 Aug 2020 16:44:05 GMT status Loading page & waiting for onload
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: CSSUsage
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: JsUsage
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: ViewportDimensions
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: RuntimeExceptions
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: ConsoleMessages
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: AnchorElements
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: ImageElements
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: LinkElements
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: MetaElements
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: ScriptElements
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: IFrameElements
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: MainDocumentContent
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: AppCacheManifest
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: Doctype
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: DOMStats
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: OptimizedImages
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: PasswordInputsWithPreventedPaste
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: ResponseCompression
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: TagsBlockingFirstPaint
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: FontSize
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: EmbeddedContent
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: RobotsTxt
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: TapTargets
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: Accessibility
Tue, 25 Aug 2020 16:44:35 GMT status Gathering in-page: TraceElements
Tue, 25 Aug 2020 16:44:35 GMT status Gathering trace
Tue, 25 Aug 2020 16:44:35 GMT status Gathering devtoolsLog & network records
Tue, 25 Aug 2020 16:45:05 GMT status Disconnecting from browser...
Tue, 25 Aug 2020 16:45:05 GMT ChromeLauncher Killing Chrome instance 232
Tue, 25 Aug 2020 16:45:05 GMT GatherRunner disconnect:error connect ECONNREFUSED 127.0.0.1:36393
Runtime error encountered: Waiting for DevTools protocol response has exceeded the allotted time. (Method: Network.emulateNetworkConditions)
LHError: PROTOCOL_TIMEOUT
    at Timeout._onTimeout (/usr/local/lib/node_modules/@lhci/cli/node_modules/lighthouse/lighthouse-core/gather/driver.js:352:21)
    at listOnTimeout (internal/timers.js:551:17)
    at processTimers (internal/timers.js:494:7)
LHCI failed!

[patrickhulce]

are they included into patrickhulce/lhci-client image

The fixes are all on the settings side of things (such as the --disable-dev-shm-usage flag you’ve configured). Recent Chromium versions have actually introduced more PROTOCOL_TIMEOUT issues, so an update to the image would make things slightly worse right now 😕

[lazysergey]

hi Patric, I see some fixes in the thread - are they included into patrickhulce/lhci-client image? I am running with cypress/browsers:node14.17.0-chrome91-ff89 where I just launch lhci autorun without issues so far, while lhci-client fails on every launch

my .lighthouserc.js:

module.exports = {
	ci: {
		collect: {
			numberOfRuns: 12,
			settings: {
				chromeFlags: '--disk-cache-size=0 --no-sandbox --headless --disable-dev-shm-usage',
			},
			url: ['http://xxx.com/aaa/', 'http://yyy.com/bbb/'],
		},
		assert: {
			preset: 'lighthouse:recommended',
			assertions: {
				'categories:performance': [
					'error',
					{
						minScore: 2,
					},
				],
				'categories:accessibility': ['error', {minScore: 1}],
			},
		},
		upload: {
			target: 'lhci',
			serverBaseUrl: 'http://lhci.int.zzz.com/',
			token: 'XXXXX-XXXX-XXXXXX-XXXXX',
		},
	},
};