I ran the Reporting Diagnostics tool and after sometime, the following error is displayed:
Something isn't working properly.
There was a problem running the diagnostic: Error
For additional debugging information, I ran Kibana with Puppeteer logs:
sudo env DEBUG="puppeteer:*" ./bin/kibana --allow-root
The following error is shown:
[2023-04-16T07:32:28.292+00:00][ERROR][plugins.screenshotting] Failed to complete a request using headers: Protocol error (Fetch.continueRequest): Invalid InterceptionId.
There are a number of these errors reported prior to timeout. There are no other errors reported before this.
Then the request times-out with (I have truncated the full stacktrace):
[2023-04-16T07:34:27.806+00:00][ERROR][plugins.screenshotting] Error: Screenshotting encountered a timeout error: "open URL" took longer than 120 seconds. You may need to increase "xpack.screenshotting.capture.timeouts.openUrl" in kibana.yml.
at /usr/share/kibana/x-pack/plugins/screenshotting/server/screenshots/observable.js:110:73
at Observable.pipe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:79:48)
at ScreenshotObservableHandler.openUrl (/usr/share/kibana/x-pack/plugins/screenshotting/server/screenshots/observable.js:129:8)
at ScreenshotObservableHandler.setupPage (/usr/share/kibana/x-pack/plugins/screenshotting/server/screenshots/observable.js:169:17)
at /usr/share/kibana/x-pack/plugins/screenshotting/server/screenshots/index.js:75:98
...
[2023-04-16T07:34:27.813+00:00][ERROR][plugins.screenshotting] TimeoutError: Navigation timeout of 120000 ms exceeded
at LifecycleWatcher._LifecycleWatcher_createTimeoutPromise (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/LifecycleWatcher.js:167:12)
[2023-04-16T07:34:27.829+00:00][ERROR][plugins.screenshotting] ProtocolError: Protocol error (Emulation.setDeviceMetricsOverride): Target closed.
at /usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/Connection.js:329:24
at new Promise (<anonymous>)
at CDPSessionImpl.send (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/Connection.js:325:16)
at EmulationManager.emulateViewport (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/EmulationManager.js:36:73)
at CDPPage.setViewport (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/Page.js:1707:96)
at HeadlessChromiumDriver.setViewport (/usr/share/kibana/x-pack/plugins/screenshotting/server/browsers/chromium/driver.js:297:21)
at resizeViewport (/usr/share/kibana/x-pack/plugins/screenshotting/server/screenshots/get_screenshots.js:34:17)
at getScreenshots (/usr/share/kibana/x-pack/plugins/screenshotting/server/screenshots/get_screenshots.js:63:13)
at /usr/share/kibana/x-pack/plugins/screenshotting/server/screenshots/observable.js:203:56
at doInnerSub (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/mergeInternals.js:22:31)
at outerNext (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/mergeInternals.js:17:70)
at OperatorSubscriber._this._next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/OperatorSubscriber.js:33:21)
at OperatorSubscriber.Subscriber.next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:51:18)
at Observable._subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/observable/innerFrom.js:109:24)
at Observable._trySubscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:41:25)
at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:35:31
at Object.errorContext (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/errorContext.js:22:9)
at Observable.subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:26:24)
at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/catchError.js:17:31
at OperatorSubscriber._this._error (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/OperatorSubscriber.js:43:21)
at OperatorSubscriber.Subscriber.error (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:60:18)
at OperatorSubscriber.Subscriber._error (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:84:30)
at OperatorSubscriber.Subscriber.error (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:60:18)
at OperatorSubscriber.Subscriber._error (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:84:30)
at OperatorSubscriber.Subscriber.error (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:60:18)
at Observable.init [as _subscribe] (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/observable/throwError.js:8:58)
at Observable._trySubscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:41:25)
at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:35:31
at Object.errorContext (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/errorContext.js:22:9)
at Observable.subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:26:24)
at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/timeout.js:38:25
at AsyncAction.<anonymous> (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/executeSchedule.js:8:9)
at AsyncAction._execute (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/scheduler/AsyncAction.js:76:18)
at AsyncAction.execute (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/scheduler/AsyncAction.js:64:26)
at AsyncScheduler.flush (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/scheduler/AsyncScheduler.js:39:33)
at listOnTimeout (node:internal/timers:559:17)
at processTimers (node:internal/timers:502:7)
[2023-04-16T07:34:27.837+00:00][ERROR][plugins.screenshotting.browser-driver] Error: Protocol error (Performance.getMetrics): Session closed. Most likely the page has been closed.
at CDPSessionImpl.send (/usr/share/kibana/node_modules/puppeteer/lib/cjs/puppeteer/common/Connection.js:316:35)
at Object.kill (/usr/share/kibana/x-pack/plugins/screenshotting/server/browsers/chromium/driver_factory/index.js:167:51)
at /usr/share/kibana/x-pack/plugins/screenshotting/server/browsers/chromium/driver_factory/index.js:204:24
at execFinalizer (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscription.js:172:9)
at OperatorSubscriber.Subscription.unsubscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscription.js:89:29)
...
Environment
Elastic/Kibana version: 8.5.3
OS: CentOS Linux release 7.5.1804 (Core)
Kibana is connected via a proxy (Nginx) over https, but I have configured reporting to use http with:
xpack.reporting.kibanaServer.port: 5601
xpack.reporting.kibanaServer.protocol: http
xpack.reporting.kibanaServer.hostname: monitor.mydomain.com
Have increased the timeout to 2m:
xpack.screenshotting.capture.timeouts.openUrl: 2m
Other relevant configuration:
server.host: "0.0.0.0"
server.publicBaseUrl: "http://monitor.mydomain.com"
server.ssl.enabled: false
server.name: "monitor.mydomain.com"
The reverse proxy SSL cert is a self-signed cert.
Is this error an indication of misconfiguration of the xpack.reporting.kibanaServer.* properties?
The closest I have found on this specific error is this SO post, and poster had solved their own issue by fixing invalid resources (presumably invalid URLs). So I suspect it is something to do with the reverse proxy configuration.
Regards,
Simon