update method issue

[lucianboboc]

I have an issue with the db.update method, it is never called if it is inside another db closure.
If i retrieve an object from the db with an id, update it and call db.update the update's callback method is never called.
Also, my mac freezed and when i took a look at the swapped memory, it was a few dozens gb, check the attached image.

I have created a gist for this: https://gist.github.com/lucianboboc/24a95fbc7234dbada8b80b1df23ffe2a

[shmuelk]

@lucianboboc I am unable to recreate your failure.

This is what I tried:

1. Created a fresh directory.
2. Created a Package.swift file that contained:

 import PackageDescription 

 let package = Package(
 name: "CouchDB_50",
 dependencies: [
     .Package(url: "https://github.com/IBM-Swift/Kitura-CouchDB.git", majorVersion: 1, minor: 4),
 ])

3. Created a file main.swift and copied your program from the ghist.
4. Added a few imports that were missing (Foundation, CouchDB, and SwiftyJSON).
5. Ran `swift build` to compile the code
6. Used CouchDB's Web UI to create a database called test
7. Ran `.build/debug/CouchDB_50`

I then get the following output:

update callback
2-4d46b416f975fed36e83d97da3789180

I will also point out that I tried running .build/debug/CouchDB_50 again after having deleting the test database. The program ends immediately with no output. Again as expected.

[lucianboboc]

Hi @shmuelk, Thank you for your message.
I'm using the Apache CouchDB 2.0 app for macOS and it runs in 'Admin Party' mode.
Indeed, the db object is updated and revision is increased, the issue is not about that, it is about the callback that's never received for the call to the update method:

database.update(id, rev: rev, document: newDocument) { rev, doc, error in
     print("update callback")
}

Have you tried to run in Xcode?
I also tried to run in terminal using ./.build/debug/testApp and i have the same problem, it remains 'waiting' and doesn't end.
I checked again in activity monitor and swap was 40gb...

[shmuelk]

What version of Kitura-CouchDB are you using?

[lucianboboc]

I'm using package 1.4

[shmuelk]

I ran swift package generate-xcodeproj from the command, opened the generated XCode project using XCode 8.2.1, built the project and ran the project. I got the following output:

update callback
2-4d46b416f975fed36e83d97da3789180
Program ended with exit code: 0

Again your program seems to work for me.

Can you try closing the Apache CouchDB 2.0 app for macOS, when you run the test?

[lucianboboc]

@shmuelk that was it, seems if i have the couchDB mac app open the update method will never be called and program doesn't end.
Thank you!