[jira] [Commented] (IGNITE-12033) .NET: Callbacks from striped pool due to async/await may hang cluster

["Maxim Muzafarov (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-12033?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16946884#comment-16946884 ] 

Maxim Muzafarov commented on IGNITE-12033:
------------------------------------------

[~ptupitsyn][~dmagda]

It seems to me this fix will be related to java source code, right? 
Should we set correct labels here and try to include this issue to 2.8 release?

> .NET: Callbacks from striped pool due to async/await may hang cluster
> ---------------------------------------------------------------------
>
>                 Key: IGNITE-12033
>                 URL: https://issues.apache.org/jira/browse/IGNITE-12033
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache, platforms
>    Affects Versions: 2.7.5
>            Reporter: Ilya Kasnacheev
>            Assignee: Pavel Tupitsyn
>            Priority: Critical
>              Labels: .net
>             Fix For: 2.8
>
>
> http://apache-ignite-users.70518.x6.nabble.com/Replace-or-Put-after-PutAsync-causes-Ignite-to-hang-td27871.html#a28051
> There's a reproducer project. Long story short, .Net can invoke cache operations with future callbacks, which will be invoked from striped pool. If such callbacks are to use cache operations, those will be possibly sheduled to the same stripe and cause a deadlock.
> The code is very simple:
> {code}
>                 Console.WriteLine("PutAsync");
>                 await cache.PutAsync(1, "Test");
>                 Console.WriteLine("Replace");
>                 cache.Replace(1, "Testing"); // Hangs here
>                 Console.WriteLine("Wait");
>                 await Task.Delay(Timeout.Infinite); 
> {code}
> async/await should absolutely not allow any client code to be run from stripes.



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