[ANR] Getting number of new ANR from module - com.mixpanel.android.*

[raghav2945]

We'd begun to receive several ANR from your component. Looking at the recored stack, it appears that we are spending a lot of time on the main thread. Which is producing such a rise in the condition and resulting in ANR. If we can outsource the task to another assistance thread, we will most likely be able to resolve this issue.

We are using Mixpanel SDK version as : = '6.0.0'

For a better understanding, I'm sharing a stack trace recorded on Firebase.

• com.mixpanel.android.mpmetrics.MixpanelActivityLifecycleCallbacks$1.run (MixpanelActivityLifecycleCallbacks.java:71)

  main (runnable): tid=1 systid=2719
     at org.json.JSONObject.<init>(JSONObject.java:122)
     at com.mixpanel.android.mpmetrics.MixpanelActivityLifecycleCallbacks$1.run(MixpanelActivityLifecycleCallbacks.java:71)
     at android.os.Handler.handleCallback(Handler.java:938)
     at android.os.Handler.dispatchMessage(Handler.java:99)
     at android.os.Looper.loop(Looper.java:223)
     at android.app.ActivityThread.main(ActivityThread.java:7701)
     at java.lang.reflect.Method.invoke(Native method)
     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:952)

• com.mixpanel.android.mpmetrics.MixpanelActivityLifecycleCallbacks.onActivityPaused(MixpanelActivityLifecycleCallbacks.java)

  main (runnable): tid=1 systid=28058
     at com.mixpanel.android.mpmetrics.MixpanelActivityLifecycleCallbacks.onActivityPaused(MixpanelActivityLifecycleCallbacks.java)
     at android.app.Application.dispatchActivityPaused(Application.java:485)
     at android.app.Activity.dispatchActivityPaused(Activity.java:1449)
     at android.app.Activity.onPause(Activity.java:2387)
     at androidx.fragment.app.FragmentActivity.onPause(FragmentActivity.java:388)
     at com.audiomack.activities.BaseActivity.onPause(BaseActivity.kt:39)
     at com.audiomack.ui.home.HomeActivity.onPause(HomeActivity.kt:284)
     at android.app.Activity.performPause(Activity.java:8383)
     at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1510)
     at android.app.ActivityThread.performPauseActivityIfNeeded(ActivityThread.java:5202)
     at android.app.ActivityThread.performPauseActivity(ActivityThread.java:5163)
     at android.app.ActivityThread.handlePauseActivity(ActivityThread.java:5114)
     at android.app.servertransaction.PauseActivityItem.execute(PauseActivityItem.java:46)
     at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:176)
     at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2307)
     at android.os.Handler.dispatchMessage(Handler.java:106)
     at android.os.Looper.loop(Looper.java:246)
     at android.app.ActivityThread.main(ActivityThread.java:8512)
     at java.lang.reflect.Method.invoke(Native method)
     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)

• com.mixpanel.android.mpmetrics.MixpanelActivityLifecycleCallbacks.onActivityStarted (MixpanelActivityLifecycleCallbacks.java)

  main (runnable): tid=1 systid=22220
     at com.mixpanel.android.mpmetrics.MixpanelActivityLifecycleCallbacks.onActivityStarted(MixpanelActivityLifecycleCallbacks.java)
     at android.app.Application.dispatchActivityStarted(Application.java:425)
     at android.app.Activity.dispatchActivityStarted(Activity.java:1382)
     at android.app.Activity.onStart(Activity.java:1873)
     at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:496)
     at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:246)
     at com.audiomack.ui.home.HomeActivity.onStart(HomeActivity.java:295)
     at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1435)
     at android.app.Activity.performStart(Activity.java:8231)
     at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3861)
     at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:221)
     at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:201)
     at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:173)
     at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:97)
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2325)
     at android.os.Handler.dispatchMessage(Handler.java:106)
     at android.os.Looper.loop(Looper.java:246)
     at android.app.ActivityThread.main(ActivityThread.java:8633)
     at java.lang.reflect.Method.invoke(Method.java)
     at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)

Please let us know if you require any other information. We will gladly provide it.

[raghav2945]

Hello there, Any update on this issue? we are still observing this issue.

[zihejia]

hi @raghav2945 , sorry for the late response. Is it possible to attach a sample app or code snippet for how to replicate the issue? We have some trouble replicating it.

[raghav2945]

Hello @zihejia

Don't be concerned. We've recently seen a drop in the number of reporting on this issue over Firebase. These may have been handled across a number of SDK and application releases. We're keeping a watch on it, and if the count rises again, we'll contact you and provide the desired information.