[wildfly-dev] xnio selection err

[Ales Justin]

I guess you still need this, while the app is running?

-Ales

On 02 Jan 2014, at 15:25, Ales Justin <ales.justin at gmail.com> wrote:

>> 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 at 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 at 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 at gmail.com> wrote:
>>>> 
>>>>> Debugging org.xnio.nio.WorkerThread : 
>>>>> (with few e.printStackTrace() invocations)
>>>>> 
>>>>> https://gist.github.com/alesj/8148775
>>>>> 
>>>>> On 27 Dec 2013, at 16:16, Jason Greene <jgreene at 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 at redhat.com> wrote:
>>>>>> 
>>>>>>> Oops
>>>>>>> 
>>>>>>> Sent from my iPhone
>>>>>>> 
>>>>>>> On Dec 27, 2013, at 9:00 AM, Jason Greene <jgreene at 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 at 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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>>> 
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