Firebase Realtime Database query is very slow on MAC OS 10.x

[thienphuoc]

Please fill in the following fields:

Pre-built SDK from the website or open-source from this repo:
Firebase C++ SDK version: 6.12.0
Firebase plugins in use (Auth, Database, etc.): Auth, Realtime
Additional SDKs you are using (Facebook, AdMob, etc.): �Facebook
Platform you are using the C++ SDK on (Mac, Windows, or Linux): MAC
Platform you are targeting (iOS, Android, and/or desktop): MAC OS

Please describe the issue here:

Hi firebase team!

Currently, I'm querying the data on the MAC OS platform. I'm facing the problem as follows :

The query takes a long time (1 to 3 minutes) to return a response. So This affects the user experience of my app.

On the IOS, Android and Windows platforms all work very well. I only have this problem on MAC OS.

I also tested both link options x86_64 and universal. But this also could not help me solve this problem.

Here is the information regarding my project :

Xcode: 11.3.1

Firebase_cpp_sdk: [ as above ]

My query : ( same as on the IOS, Android and Windows platforms)

auto user = ap::Database::getInstance().getUserInfo();

firebase::database::DatabaseReference dbref = database->GetReference();

std::string path = cocos2d::StringUtils::format("users/%d/%s/", user._id, USER_REALTIME_VARIABLE);

auto result = dbref.Child(path).GetValue();

result.OnCompletion([callback](const Future<firebase::database::DataSnapshot>& result_data) {

	//my codes

});

As I know, MACOS doesn't officially support from firebase team, right?
Could the firebase team help me solve this issue?
Hopefully, I can get answers soon from your side.

Please answer the following, if applicable:

Have you been able to reproduce this issue with just the Firebase C++ quickstarts? No, I have not tried.
What's the issue repro rate? 100%

[google-oss-bot]

This issue does not seem to follow the issue template. Make sure you provide all the required information.

[morganchen12]

@thienphuoc, can you share a sample project that reproduces this issue?

[dtnam1997]

This problem only occurs when I add the app sandbox in the signning & capacities tab even though all permissions are enabled. After remove it all work very well. But to distribute a macOS app through the Mac App Store, you must enable the App Sandbox capability.
Could the firebase team help me solve this issue?
Hopefully, I can get answers soon from your side.

[thienphuoc]

Hi @morganchen12

@dtnam1997 is my team member. It's the problem that my team is facing. Please let me know if you have any information to help us to solve this issue.

Thanks

[morganchen12]

Can you pause execution with the debugger while the SDK is waiting for a response and share the full stack trace at that time?

[thienphuoc]

hi @morganchen12

Here is the sample project. https://github.com/thienphuoc/firebase_on_mac

The project path is located at

proj.ios_mac/TestFirebase.xcworkspace

If you want to reproduce bug , please take a look at the "Signing & Capabilities" tab. If we

• remove the "App Sanbox" , all codes work correctly -> the helloword.png image will appear immediately in the center of the screen.

• add the "App Sanbox" -> The query takes a long time to a respond (1 to 3 minutes) . You can see the code in HelloWord.cpp file.

Thanks

[thienphuoc]

@hi @morganchen12

Do you have any update on this issuse ?

[morganchen12]

Hey, sorry for the slow update. I will take a look at this today or tomorrow.

[morganchen12]

I was able to reproduce the error with the sample attached. This looks like a real bug, though I'm unable to determine what's causing it. It seems fetch return is much slower with sandbox enabled for both successful fetches and error cases, even on a fast wifi connection.

Next steps are to figure out if this is an issue when using the macOS SDK directly, and if so, try to further isolate it from there.

[dtnam1997]

Please tell us when you have updates on this issue ?