In situations where the network is slow, ANR often occurs

[yaohuzhou]

Integration

sentry-android

Build System

Gradle

AGP Version

7.3.1

Proguard

Disabled

Version

6.17.0

Steps to Reproduce

Reproduction steps:

1. Initialize SDK.

`class TestApplication : Application() {

override fun onCreate() {
    super.onCreate()
    SentryAndroid.init(this) { options ->
        options.isDebug = BuildConfig.DEBUG
        options.dsn = "https://examplePublicKey@o0.ingest.sentry.io/0"
        options.isEnableSystemEventBreadcrumbs = false
        options.isEnableUncaughtExceptionHandler = true
        options.isEnableNdk = true
        options.isAnrEnabled = true
        options.maxRequestBodySize = SentryOptions.RequestSize.MEDIUM
        options.isAnrReportInDebug = false
        options.tracesSampleRate = 1.0
        options.profilesSampleRate = 1.0
    }
}

}`

2.Simulate a weak network environment using Charles proxy.
Throttle Settings-> Bandwidth (kbps): Download = 1 Upload = 1
Start Throttling

3.Repeat opening the app multiple times and wait for about 20 seconds.

4.ANR

Expected Result

There will be no ANR.

Actual Result

ANR often occurs.

[yaohuzhou]

The bug can be reproduced using the demo.
Demo.zip

Charles Throttle Settings

[romtsn]

@yaohuzhou hi, thanks for the report. Can you share the full stacktrace/thread dump of the ANR please? It's not clear why you think our SDK is the cause.

[yaohuzhou]

@yaohuzhou hi, thanks for the report. Can you share the full stacktrace/thread dump of the ANR please? It's not clear why you think our SDK is the cause.
anr_2023-04-13.txt
I hope this log file is helpful for you.

[yaohuzhou]

收到

[helloword1]

I have the same problem：

sun.misc.Unsafe.park(Native Method)
2
java.util.concurrent.locks.LockSupport.park(LockSupport.java:190)
3
java.util.concurrent.FutureTask.awaitDone(FutureTask.java:450)
4
java.util.concurrent.FutureTask.get(FutureTask.java:192)
5
io.sentry.android.core.AndroidTransactionProfiler.onTransactionFinish(AndroidTransactionProfiler.java:263)
6
io.sentry.SentryTracer.finish(SentryTracer.java:391)
7
io.sentry.SentryTracer.finish(SentryTracer.java:350)
8
io.sentry.android.core.ActivityLifecycleIntegration.finishTransaction(ActivityLifecycleIntegration.java:332)
9
io.sentry.android.core.ActivityLifecycleIntegration.stopTracing(ActivityLifecycleIntegration.java:305)
10
io.sentry.android.core.ActivityLifecycleIntegration.onActivityDestroyed(ActivityLifecycleIntegration.java:458)
11
android.app.Application.dispatchActivityDestroyed(Application.java:579)
12
android.app.Activity.dispatchActivityDestroyed(Activity.java:1591)
13
android.app.Activity.onDestroy(Activity.java:2775)
14
androidx.fragment.app.FragmentActivity.onDestroy(FragmentActivity.java:258)

[helloword1]

我今天也遇到这个问题，降到6.16.0也一样

[kahest]

cc @stefanosiano since this seems to be related to the Profiler

[helloword1]

这个文件:AndroidTransactionProfiler 260行使用线程池的submit()方法，再get的时候会阻塞子线程，导致卡顿。

[stefanosiano]

@kahest @helloword1 @yaohuzhou I'll have a look at it soon.
Thanks for all the feedback