Item subscription is dropped in certain cases

derbyjs / racer

Realtime model synchronization engine for Node.js

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Item subscription is dropped in certain cases #195

Closed ile closed 5 months ago

ile commented 10 years ago

An app (modified derby-examples/directory) to reproduce with:

https://github.com/ilkkah/d-test4

Derby bug is this: sometimes the subscription for an item is dropped too soon. This happens about 10 % of the time.

Reproduce like this:

Add some (5-10) people into the directory
Follow some/all of those people (click the follow button)
Go to the Followed page
Click a person, you'll see the edit page
Click Unfollow. At this point, if the bug happens, the person info will go blank i.e. person data subscription is "dropped".
If the bug doesn't happen, go to Followed page and select another person etc.

This should happen at least 10 % of the time (once in 10 persons).

minicuper commented 10 years ago

Did you use F5 during the actions? Please, try to apply the patch https://github.com/derbyjs/racer/pull/191 and test the bug.

ile commented 10 years ago

https://github.com/dmapper/racer/commit/19c5890758e03a2d7ea3267d48ed3b5d36f962b8 didn't fix it.

I'm not using much F5, and I don't think it will have a lot of effect. F5 does establish the subscription back of course though.

ile commented 10 years ago

This happens 100% of the time if you click Unfollow in 1 second after entering the page. 1s as in model.root.unloadDelay (1000 ms).

So, the bug is in there (in unloading).

craigbeck commented 5 months ago

Thanks for your contributing your issue.

We have recently been actively updating the Derby and Racer packages, and both repos are now in Typescript and published with types on npm. As we have quite a few old issues open we have made the decision to close out of date issues.

If this issue still matters to you we encourage reproducing against the current versions of the repo and opening a new issue.