Oh is it always at shutdown?

No.
It's also while the app runs.
But dunno how to re-produce it on a constant basis.

-Ales

On Jan 2, 2014, at 5:28 AM, Ales Justin <ales.justin@gmail.com> wrote:

Here:
* https://gist.github.com/alesj/8217872

But I didn't get any WARN log during my "chat", only at shutdown.
Does it still help? Otherwise I can try to catch this when getting WARNings during chat.

-Ales

On 28 Dec 2013, at 17:14, Jason Greene <jgreene@redhat.com> wrote:

Can you try using dtruss for kevent:

1. Start server
2. Get PID (jps)
3. sudo dtruss -f -t kevent -p PID 2> truss.log


Sent from my iPad

On Dec 27, 2013, at 9:47 AM, Ales Justin <ales.justin@gmail.com> wrote:

Debugging org.xnio.nio.WorkerThread : 
(with few e.printStackTrace() invocations)


On 27 Dec 2013, at 16:16, Jason Greene <jgreene@redhat.com> wrote:

BTW one possible cause is that your user has exceeded the max open files  limit, and you need to bump ulimit.

The reason I am interested in the stack trace though is to see which poll provider is throwing the error.

Sent from my iPhone

On Dec 27, 2013, at 9:07 AM, Jason Greene <jgreene@redhat.com> wrote:

Oops

Sent from my iPhone

On Dec 27, 2013, at 9:00 AM, Jason Greene <jgreene@redhat.com> wrote:

Any chance you can get a stack trace out of it? Upping the log level or using a debugger to catch IOException would do the trick.

The error means the OS is throwing EINVAL.

Is this a OSX Mavericks? If so can you double check you are running the latest JVM?

Sent from my iPhone

On Dec 27, 2013, at 8:36 AM, Tomaž Cerar <tomaz.cerar@gmail.com> wrote:

Isn't that the same error that happens only on your mac also in few other cases?

Can you try on any other platform?

Sent from my Phone
From: Ales Justin
Sent: ‎27.‎12.‎2013 14:14
To: Wildfly Dev mailing list
Subject: [wildfly-dev] xnio selection err

While using UnderTow's JSR WebSockets,
implementing simple chat app, between 2 diff browsers (Chrome and Safari),
I get a flood of these log lines:

14:09:22,890 WARN  [org.xnio.nio.selector] (default I/O-3) XNIO008000: Received an I/O error on selection: java.io.IOException: Invalid argument

Any idea?

-Ales

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