Warm Startup Time tracked as 24h in average

[fabiendem]

OS:

• Windows
• MacOS
• Linux

Platform:

• iOS
• Android

SDK:

• @sentry/react-native (>= 1.0.0)
• react-native-sentry (<= 0.43.2)

SDK version: v4.3.1

react-native version: 0.66.4

Are you using Expo?

• Yes
• No

Are you using sentry.io or on-premise?

• sentry.io (SaaS)
• on-premise

If you are using sentry.io, please post a link to your issue so we can take a look:

[Link to issue]

Configuration:

(@sentry/react-native)

// In the App's componentDidMount

SentrySdk.init({
    dsn: sentryConfig.dsn,
    release: releaseIdentifier,
    dist: BuildInfo.buildVersion,
    enableAutoSessionTracking: true,
    enableAutoPerformanceTracking: true,
    tracesSampleRate: 0.1,
    integrations: [
      new SentrySdk.ReactNativeTracing({
        // Pass the React Navigation instrumentation to be used as `routingInstrumentation`
        // See https://docs.sentry.io/platforms/react-native/performance/instrumentation/automatic-instrumentation/#react-navigation-v4
        routingInstrumentation,
      }),
    ],
  });

---

I have following issue:

We track the performances of our React Native app.

Actual result:

The cold startup time is given at ~2 seconds, which is okay...
The warm startup time is given at 24h.

Expected result:

The warm startup time should be accurate, around a few ms or seconds.

Is this a known bug? Or have we missed something in our configuration?

[marandaneto]

@fabiendem can you link us to a sentry issue that shows the long warm start-up? there were issues before related to that, but not in the latest version, are those coming from older SDK versions?

[fabiendem]

@marandaneto Ok thanks, we've been using RN Sentry v3.2.13.
We've just updated it but the app release is not out yet, so we will need to wait a bit to see the results.
Do you know in which release this was fixed? I couldn't find a commit message which seemed relevant.

You can see the stats over there, private access.

[marandaneto]

Its in the 4.x version, I'd upgrade to the latest version.
For context #2295

[fabiendem]

Great thanks for the context

[fabiendem]

Hi @marandaneto, sorry to reopen this but we seem to have a regression here.
We're running "@sentry/react-native": "4.14.0".

We have the issue again with startup time close to several hours sometimes.

Over 90 days

Over 7 days

Is there anything we're missing? Is it a known issue?
Cheers!