[jboss-jira] [JBoss JIRA] (WFWIP-308) MP Fault Tolerance - unexpected behaviour @Fallback method calls with @Bulkhead

[Radoslav Husar (Jira)]

    [ https://issues.redhat.com/browse/WFWIP-308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13983725#comment-13983725 ] 

Radoslav Husar commented on WFWIP-308:
--------------------------------------

Opened upstream as https://github.com/smallrye/smallrye-fault-tolerance/issues/198.

> MP Fault Tolerance - unexpected behaviour @Fallback method calls with @Bulkhead
> -------------------------------------------------------------------------------
>
>                 Key: WFWIP-308
>                 URL: https://issues.redhat.com/browse/WFWIP-308
>             Project: WildFly WIP
>          Issue Type: Bug
>          Components: MP Fault Tolerance
>            Reporter: Ondrej Kotek
>            Assignee: Radoslav Husar
>            Priority: Blocker
>
> MP FT does behave correctly in case when there is {{@Bulkhead}}, {{@Timeout}} and {{@Fallback}} and {{@Asynchronous}} on service method. Some of requests do not go to fallback method but end with {{InterruptedException}}.
> Test scenario:
> - Deploy MP FT service with:
> {noformat}
>     @Asynchronous
>     @Bulkhead(value = 15, waitingTaskQueue = 15)
>     @Timeout(value = 1000)
>     @Fallback(fallbackMethod = "processFallback")
>     public CompletionStage<MyConnection> bulkheadTimeout(boolean fail) throws InterruptedException {
>         if (fail) {
>             Thread.sleep(2000);
>         }
>         return CompletableFuture.completedFuture(new MyConnection() {
>             @Override
>             public String getData() {
>                 return "Hello from @Bulkhead @Timeout method";
>             }
>         });
>     }
>     private CompletionStage<MyConnection> processFallback(boolean fail) {
>         return CompletableFuture.completedFuture(new MyConnection() {
>             @Override
>             public String getData() {
>                 return "Fallback Hello";
>             }
>         });
>     }
> {noformat}
> - Send 10+ parallel requests with fail == true
> Expected result:
> All requests should go to fallback.
> Actual Result:
> Random number of requests (close to the number of requests) go to fallback.



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