<div dir="ltr">Unfortunately not, but my scenario itself was fairly simple. I was just creating a FormData instance in JavaScript that had a few values including a file and then sending it via AJAX POST to the server as multipart/form-data.</div><br><div class="gmail_quote"><div dir="ltr">On Sun, Feb 26, 2017 at 3:33 PM Stuart Douglas <<a href="mailto:sdouglas@redhat.com">sdouglas@redhat.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">This does sound like a h2 issue. Do you have a reliable way or<br class="gmail_msg">
reproducing it that I can debug?<br class="gmail_msg">
<br class="gmail_msg">
Stuart<br class="gmail_msg">
<br class="gmail_msg">
On Sun, Feb 26, 2017 at 5:12 AM, Hicks, Matt <<a href="mailto:matt@matthicks.com" class="gmail_msg" target="_blank">matt@matthicks.com</a>> wrote:<br class="gmail_msg">
> It just occurred to me this might be related to me using HTTP2. I was also<br class="gmail_msg">
> experiencing both client and server errors loading resources (audio and<br class="gmail_msg">
> video). I just turned off HTTP2 and now I'm not experiencing any errors at<br class="gmail_msg">
> all. I haven't tried switching back to asynchronous parsing of<br class="gmail_msg">
> multipart/form-data yet though.<br class="gmail_msg">
><br class="gmail_msg">
> On Sat, Feb 25, 2017 at 11:06 AM Hicks, Matt <<a href="mailto:matt@matthicks.com" class="gmail_msg" target="_blank">matt@matthicks.com</a>> wrote:<br class="gmail_msg">
>><br class="gmail_msg">
>> Thanks for the response Bill, but that's almost verbatim what I was<br class="gmail_msg">
>> already doing and it was sometimes not working and getting stuck.<br class="gmail_msg">
>><br class="gmail_msg">
>> On Sat, Feb 25, 2017 at 10:13 AM Bill O'Neil <<a href="mailto:bill@dartalley.com" class="gmail_msg" target="_blank">bill@dartalley.com</a>> wrote:<br class="gmail_msg">
>>><br class="gmail_msg">
>>> Have you looked into the EagerFormParsingHandler?<br class="gmail_msg">
>>><br class="gmail_msg">
>>> On Sat, Feb 25, 2017 at 11:01 AM, Hicks, Matt <<a href="mailto:matt@matthicks.com" class="gmail_msg" target="_blank">matt@matthicks.com</a>> wrote:<br class="gmail_msg">
>>>><br class="gmail_msg">
>>>> Well, it appears I fixed the problem. After switching to the following<br class="gmail_msg">
>>>> code everything is working fine now:<br class="gmail_msg">
>>>><br class="gmail_msg">
>>>> if (exchange.isInIoThread()) {<br class="gmail_msg">
>>>> exchange.dispatch(this);<br class="gmail_msg">
>>>> } else {<br class="gmail_msg">
>>>> exchange.startBlocking();<br class="gmail_msg">
>>>> formParserBuilder.build().createParser(exchange).parseBlocking();<br class="gmail_msg">
>>>> ...<br class="gmail_msg">
>>>> }<br class="gmail_msg">
>>>><br class="gmail_msg">
>>>> It's unfortunately that the non-blocking approach seems to be<br class="gmail_msg">
>>>> unreliable.<br class="gmail_msg">
>>>><br class="gmail_msg">
>>>> On Fri, Feb 24, 2017 at 7:18 PM Hicks, Matt <<a href="mailto:matt@matthicks.com" class="gmail_msg" target="_blank">matt@matthicks.com</a>> wrote:<br class="gmail_msg">
>>>>><br class="gmail_msg">
>>>>> I gave it several minutes to run and finally just forcibly reloaded the<br class="gmail_msg">
>>>>> page and it spun for a few seconds like it normally does, but I waited and<br class="gmail_msg">
>>>>> eventually it threw this exception:<br class="gmail_msg">
>>>>><br class="gmail_msg">
>>>>> appJVM[ERROR] Feb 24, 2017 7:15:45 PM org.xnio.ChannelListeners<br class="gmail_msg">
>>>>> invokeChannelListener<br class="gmail_msg">
>>>>> appJVM[ERROR] ERROR: XNIO001007: A channel event listener threw an<br class="gmail_msg">
>>>>> exception<br class="gmail_msg">
>>>>> appJVM[ERROR] java.lang.IllegalStateException<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> io.undertow.server.protocol.framed.AbstractFramedStreamSinkChannel.getBuffer(AbstractFramedStreamSinkChannel.java:574)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> io.undertow.server.protocol.framed.AbstractFramedChannel.flushSenders(AbstractFramedChannel.java:629)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> io.undertow.server.protocol.framed.AbstractFramedChannel$FrameWriteListener.handleEvent(AbstractFramedChannel.java:951)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> io.undertow.server.protocol.framed.AbstractFramedChannel$FrameWriteListener.handleEvent(AbstractFramedChannel.java:948)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> org.xnio.conduits.WriteReadyHandler$ChannelListenerHandler.writeReady(WriteReadyHandler.java:65)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> io.undertow.protocols.ssl.SslConduit$SslWriteReadyHandler.writeReady(SslConduit.java:1225)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> io.undertow.protocols.ssl.SslConduit$3.run(SslConduit.java:275)<br class="gmail_msg">
>>>>> appJVM[ERROR] at<br class="gmail_msg">
>>>>> org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:580)<br class="gmail_msg">
>>>>> appJVM[ERROR] at org.xnio.nio.WorkerThread.run(WorkerThread.java:464)<br class="gmail_msg">
>>>>><br class="gmail_msg">
>>>>> I don't know if it's relevant to the problem or not, but at this point<br class="gmail_msg">
>>>>> I'm just grasping for any straw.<br class="gmail_msg">
>>>>><br class="gmail_msg">
>>>>> On Fri, Feb 24, 2017 at 5:18 PM Hicks, Matt <<a href="mailto:matt@matthicks.com" class="gmail_msg" target="_blank">matt@matthicks.com</a>> wrote:<br class="gmail_msg">
>>>>>><br class="gmail_msg">
>>>>>> 4.) I have three threads "runnable":<br class="gmail_msg">
>>>>>><br class="gmail_msg">
>>>>>> "XNIO-1 Accept@6446" prio=5 tid=0x21 nid=NA runnable<br class="gmail_msg">
>>>>>> java.lang.Thread.State: RUNNABLE<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollArrayWrapper.epollWait(EPollArrayWrapper.java:-1)<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)<br class="gmail_msg">
>>>>>> - locked <merged>(a sun.nio.ch.EPollSelectorImpl)<br class="gmail_msg">
>>>>>> - locked <merged>(a java.util.Collections$UnmodifiableSet)<br class="gmail_msg">
>>>>>> - locked <merged>(a sun.nio.ch.Util$3)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)<br class="gmail_msg">
>>>>>> at org.xnio.nio.WorkerThread.run(WorkerThread.java:509)<br class="gmail_msg">
>>>>>><br class="gmail_msg">
>>>>>> "XNIO-1 I/O-7@6448" prio=5 tid=0x1f nid=NA runnable<br class="gmail_msg">
>>>>>> java.lang.Thread.State: RUNNABLE<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollArrayWrapper.epollWait(EPollArrayWrapper.java:-1)<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)<br class="gmail_msg">
>>>>>> - locked <merged>(a sun.nio.ch.EPollSelectorImpl)<br class="gmail_msg">
>>>>>> - locked <merged>(a java.util.Collections$UnmodifiableSet)<br class="gmail_msg">
>>>>>> - locked <merged>(a sun.nio.ch.Util$3)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)<br class="gmail_msg">
>>>>>> at org.xnio.nio.WorkerThread.run(WorkerThread.java:509)<br class="gmail_msg">
>>>>>><br class="gmail_msg">
>>>>>> "XNIO-1 I/O-3@6452" prio=5 tid=0x1b nid=NA runnable<br class="gmail_msg">
>>>>>> java.lang.Thread.State: RUNNABLE<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollArrayWrapper.epollWait(EPollArrayWrapper.java:-1)<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)<br class="gmail_msg">
>>>>>> at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)<br class="gmail_msg">
>>>>>> - locked <0x1953> (a sun.nio.ch.EPollSelectorImpl)<br class="gmail_msg">
>>>>>> - locked <0x1954> (a java.util.Collections$UnmodifiableSet)<br class="gmail_msg">
>>>>>> - locked <0x1955> (a sun.nio.ch.Util$3)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)<br class="gmail_msg">
>>>>>> at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101)<br class="gmail_msg">
>>>>>> at org.xnio.nio.WorkerThread.run(WorkerThread.java:509)<br class="gmail_msg">
>>>>>><br class="gmail_msg">
>>>>>><br class="gmail_msg">
>>>>>><br class="gmail_msg">
>>>>>> On Fri, Feb 24, 2017 at 5:15 PM Hicks, Matt <<a href="mailto:matt@matthicks.com" class="gmail_msg" target="_blank">matt@matthicks.com</a>><br class="gmail_msg">
>>>>>> wrote:<br class="gmail_msg">
>>>>>>><br class="gmail_msg">
>>>>>>> 1.) I was running 1.4.10.Final, but I upgraded to 1.4.11.Final hoping<br class="gmail_msg">
>>>>>>> it was a bug that was fixed, but it didn't make any difference.<br class="gmail_msg">
>>>>>>> 2.) Yes<br class="gmail_msg">
>>>>>>> 3.) No, of the 8 virtual CPUs none of them are maxed out.<br class="gmail_msg">
>>>>>>> 4.) I'll have to get back to you...<br class="gmail_msg">
>>>>>>><br class="gmail_msg">
>>>>>>> On Fri, Feb 24, 2017 at 5:10 PM Stuart Douglas <<a href="mailto:sdouglas@redhat.com" class="gmail_msg" target="_blank">sdouglas@redhat.com</a>><br class="gmail_msg">
>>>>>>> wrote:<br class="gmail_msg">
>>>>>>>><br class="gmail_msg">
>>>>>>>> - What version of Undertow?<br class="gmail_msg">
>>>>>>>> - Is SSL in use?<br class="gmail_msg">
>>>>>>>> - Does the server enter some kind of spin loop (i.e. 100% CPU<br class="gmail_msg">
>>>>>>>> usage)?<br class="gmail_msg">
>>>>>>>> - What does the stack trace look like when this happens?<br class="gmail_msg">
>>>>>>>><br class="gmail_msg">
>>>>>>>> Stuart<br class="gmail_msg">
>>>>>>>><br class="gmail_msg">
>>>>>>>> On Sat, Feb 25, 2017 at 9:14 AM, Hicks, Matt <<a href="mailto:matt@matthicks.com" class="gmail_msg" target="_blank">matt@matthicks.com</a>><br class="gmail_msg">
>>>>>>>> wrote:<br class="gmail_msg">
>>>>>>>> > I'm uploading files as "multipart/form-data" and using the<br class="gmail_msg">
>>>>>>>> > FormParser as<br class="gmail_msg">
>>>>>>>> > follows:<br class="gmail_msg">
>>>>>>>> ><br class="gmail_msg">
>>>>>>>> ><br class="gmail_msg">
>>>>>>>> > FormParserFactory.builder().build().createParser(exchange).parse(nextHandler)<br class="gmail_msg">
>>>>>>>> ><br class="gmail_msg">
>>>>>>>> > Sometimes this works fine, but very often my client shows progress<br class="gmail_msg">
>>>>>>>> > up to a<br class="gmail_msg">
>>>>>>>> > certain percentage complete (monitoring the AJAX request) and then<br class="gmail_msg">
>>>>>>>> > just<br class="gmail_msg">
>>>>>>>> > stops and never kicks to `nextHandler`, leaves the connection just<br class="gmail_msg">
>>>>>>>> > sitting<br class="gmail_msg">
>>>>>>>> > there forever, and the server seems to stop accepting any future<br class="gmail_msg">
>>>>>>>> > connections.<br class="gmail_msg">
>>>>>>>> ><br class="gmail_msg">
>>>>>>>> > Any idea what might be causing this?<br class="gmail_msg">
>>>>>>>> ><br class="gmail_msg">
>>>>>>>> > _______________________________________________<br class="gmail_msg">
>>>>>>>> > undertow-dev mailing list<br class="gmail_msg">
>>>>>>>> > <a href="mailto:undertow-dev@lists.jboss.org" class="gmail_msg" target="_blank">undertow-dev@lists.jboss.org</a><br class="gmail_msg">
>>>>>>>> > <a href="https://lists.jboss.org/mailman/listinfo/undertow-dev" rel="noreferrer" class="gmail_msg" target="_blank">https://lists.jboss.org/mailman/listinfo/undertow-dev</a><br class="gmail_msg">
>>>><br class="gmail_msg">
>>>><br class="gmail_msg">
>>>> _______________________________________________<br class="gmail_msg">
>>>> undertow-dev mailing list<br class="gmail_msg">
>>>> <a href="mailto:undertow-dev@lists.jboss.org" class="gmail_msg" target="_blank">undertow-dev@lists.jboss.org</a><br class="gmail_msg">
>>>> <a href="https://lists.jboss.org/mailman/listinfo/undertow-dev" rel="noreferrer" class="gmail_msg" target="_blank">https://lists.jboss.org/mailman/listinfo/undertow-dev</a><br class="gmail_msg">
>>><br class="gmail_msg">
>>><br class="gmail_msg">
><br class="gmail_msg">
</blockquote></div>