App Start measurement has large (days, months) values on iOS

[bruno-garcia]

A customer with large scale has several transactions with App Start consisting of days/weeks/months.

This happens on iOS but not on Android.

iOS App Start code: https://github.com/getsentry/sentry-cocoa/blob/472d14683103300272ffaf6377385c49a41572dc/Sources/Sentry/SentryAppStartTracker.m#L100-L131

SDK version 3.4.0

[marandaneto]

@philipphofmann after your workaround to not report huge app start for iOS, is PrivateSentrySDKOnly.appStartMeasurement gonna return null? if so, we don't need to do anything here right now.

[philipphofmann]

Yes, PrivateSentrySDKOnly.appStartMeasurement is going to return nil. If you can, please wait for 7.18.0, which should be out today or tomorrow. Again contains some fixes related to this.

[marandaneto]

https://dev.to/pyricau/android-vitals-when-did-my-app-start-24p4
Apparently Android already can give you some weird values due to different reasons and the recommendation is to filter out App start with more than a minute, we should do that as well.

Edit: getsentry/sentry-java#2127