Re: [undertow-dev] Inconsistency in performing async task

Hi Stuart, Here's the pattern: ``` public void handleRequest... { if (exchange.isInIoThread()) { exchange.dispatch(this); return; } //do some I/O intensive work //... CompletableFuture.supplyAsync(.../*send email with logged exception handling*/...) //#A exchange.getResponseSender().send(responseJson); } ``` The line #A is inconsistent. The task in #A is executed by a thread in common forkjoin pool and may be that could be the reason? I'm not sure. Maybe using one of undertow's worker threads might solve it? Is there a way to do so? All I want is to return response to the client immediately and execute delayable work in the background thread. Thanks. On Mon, Mar 26, 2018 at 4:50 AM, Stuart Douglas <sdouglas(a)redhat.com&gt; wrote: > How are you running the task? If you just submit it to the worker it > should just run like any normal executor. > > Stuart > > On Mon, Mar 26, 2018 at 3:31 AM, Nabeel Imtiaz <nimtiazm(a)gmail.com&gt; > wrote: > >> Hi, >> >> I'm trying to perform expensive tasks (like sending email/sms etc) as an >> async task (using CompletableFuture API) after my undertow worker completes >> and i'm about to respond to the client. These tasks are supposed to work >> like fire and forget and I don't want to wait until the task completes and >> then respond to the client. >> >> I've noticed that sometimes the task doesn't execute and sometimes it >> does. It's inconsistent and hard to reproduce. Is there a way to be able to >> perform these async tasks consistently? May be i'm using wrong thread-pool? >> Or may be there's already a way in Undertow to do such tasks. >> >> Please comment. >> >> Thanks. >> >> _______________________________________________ >> undertow-dev mailing list >> undertow-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/undertow-dev >> > >