<div dir="ltr">Well, I seem to have narrowed down the cause to CloudFlare. If I pause CloudFlare then it stops happening. The connection is incredibly stable and was happening consistently.</div><br><div class="gmail_quote"><div dir="ltr">On Wed, Apr 12, 2017 at 5:26 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">I am guessing you are using the websocket client? This would be the<br>
exception you get if the connection failed. I don't think Undertow<br>
does any logging, so you must be logging this at the ERROR level.<br>
<br>
As to why it is failing it is hard to say. How good is the network<br>
between the client and the target server, and how often is a lot?<br>
<br>
Also what version were you using before 1.4.12.Final?<br>
<br>
Stuart<br>
<br>
On Thu, Apr 13, 2017 at 12:15 AM, Hicks, Matt <<a href="mailto:matt@matthicks.com" target="_blank">matt@matthicks.com</a>> wrote:<br>
> I seem to be experiencing a lot of:<br>
><br>
> [XNIO-1 task-40] ERROR i.y.E.defaultHandler.???:23 -<br>
> java.nio.channels.ClosedChannelException<br>
> at io.undertow.protocols.ssl.SslConduit.write(SslConduit.java:369)<br>
> at<br>
> org.xnio.conduits.ConduitStreamSinkChannel.write(ConduitStreamSinkChannel.java:150)<br>
> at<br>
> org.xnio.http.HttpUpgrade$HttpUpgradeState$StringWriteListener.handleEvent(HttpUpgrade.java:385)<br>
> at<br>
> org.xnio.http.HttpUpgrade$HttpUpgradeState$StringWriteListener.handleEvent(HttpUpgrade.java:372)<br>
> at<br>
> org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)<br>
> at<br>
> org.xnio.conduits.WriteReadyHandler$ChannelListenerHandler.writeReady(WriteReadyHandler.java:65)<br>
> at<br>
> io.undertow.protocols.ssl.SslConduit$SslWriteReadyHandler.writeReady(SslConduit.java:1225)<br>
> at io.undertow.protocols.ssl.SslConduit$3.run(SslConduit.java:275)<br>
> at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:580)<br>
> at org.xnio.nio.WorkerThread.run(WorkerThread.java:464)<br>
><br>
> I'm not positive this is connected to my update to 1.4.12.Final, but I<br>
> wanted to check to see if this is something anyone else is seeing? It's<br>
> likely it's related to my code, although I have no idea what I would have<br>
> changed to cause this.<br>
><br>
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</blockquote></div>