[wildfly-dev] xnio selection err

[Jason Greene]

Yeah if possible that would be great. I didn’t see any errors in the gist you linked.
On Jan 9, 2014, at 4:41 PM, Ales Justin <ales.justin at gmail.com> wrote:

> 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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> 
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--
Jason T. Greene
WildFly Lead / JBoss EAP Platform Architect
JBoss, a division of Red Hat