[undertow-dev] ClosedChannelException

Hicks, Matt matt at matthicks.com
Wed Apr 12 19:28:25 EDT 2017


I don't believe so...it seems to be happening when sending a message from
the server to the browser after the connection has already been established
successfully.  I'll do some additional research and see if I can further
narrow down the problem.

On Wed, Apr 12, 2017 at 6:16 PM Stuart Douglas <sdouglas at redhat.com> wrote:

> Maybe cloudflare is rejecting some of the websocket upgrades?
>
> Stuart
>
> On Thu, Apr 13, 2017 at 9:04 AM, Hicks, Matt <matt at matthicks.com> wrote:
> > 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.
> >
> > On Wed, Apr 12, 2017 at 5:26 PM Stuart Douglas <sdouglas at redhat.com>
> wrote:
> >>
> >> I am guessing you are using the websocket client? This would be the
> >> exception you get if the connection failed. I don't think Undertow
> >> does any logging, so you must be logging this at the ERROR level.
> >>
> >> As to why it is failing it is hard to say. How good is the network
> >> between the client and the target server, and how often is a lot?
> >>
> >> Also what version were you using before 1.4.12.Final?
> >>
> >> Stuart
> >>
> >> On Thu, Apr 13, 2017 at 12:15 AM, Hicks, Matt <matt at matthicks.com>
> wrote:
> >> > I seem to be experiencing a lot of:
> >> >
> >> > [XNIO-1 task-40] ERROR i.y.E.defaultHandler.???:23 -
> >> > java.nio.channels.ClosedChannelException
> >> >     at io.undertow.protocols.ssl.SslConduit.write(SslConduit.java:369)
> >> >     at
> >> >
> >> >
> org.xnio.conduits.ConduitStreamSinkChannel.write(ConduitStreamSinkChannel.java:150)
> >> >     at
> >> >
> >> >
> org.xnio.http.HttpUpgrade$HttpUpgradeState$StringWriteListener.handleEvent(HttpUpgrade.java:385)
> >> >     at
> >> >
> >> >
> org.xnio.http.HttpUpgrade$HttpUpgradeState$StringWriteListener.handleEvent(HttpUpgrade.java:372)
> >> >     at
> >> >
> >> >
> org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
> >> >     at
> >> >
> >> >
> org.xnio.conduits.WriteReadyHandler$ChannelListenerHandler.writeReady(WriteReadyHandler.java:65)
> >> >     at
> >> >
> >> >
> io.undertow.protocols.ssl.SslConduit$SslWriteReadyHandler.writeReady(SslConduit.java:1225)
> >> >     at io.undertow.protocols.ssl.SslConduit$3.run(SslConduit.java:275)
> >> >     at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:580)
> >> >     at org.xnio.nio.WorkerThread.run(WorkerThread.java:464)
> >> >
> >> > I'm not positive this is connected to my update to 1.4.12.Final, but I
> >> > wanted to check to see if this is something anyone else is seeing?
> It's
> >> > likely it's related to my code, although I have no idea what I would
> >> > have
> >> > changed to cause this.
> >> >
> >> > _______________________________________________
> >> > undertow-dev mailing list
> >> > undertow-dev at lists.jboss.org
> >> > https://lists.jboss.org/mailman/listinfo/undertow-dev
>
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