Error on writeRequested
"이희승 (Trustin Lee)"
trustin at gmail.com
Mon May 30 10:42:41 EDT 2011
I see. So, you are not closing the connection since the first
channelIdle event. In spite that channelIdle event is triggered
repetitively, there's no way to distinguish the second event from the
first one currently. I think that is the missing feature. To work
around this problem, you need to maintain a state variable that counts
the number of consecutive channelIdle events and write the response only
when the counter is 0 (i.e. first channelIdle event).
HTH
On 05/30/2011 11:35 PM, Jason Sia wrote:
> When I tried to write a response to the idle channel it writes the first
> time then the idletimer continues to run and it still detect that the
> channel is idle even though I wrote a response on it. What do I need to
> do for it to change its state, I think the error is in there that's why
> it is saying that I cannot send more response than the request
>
> On Mon, May 30, 2011 at 9:50 PM, jsia24 <jsia18 at gmail.com
> <mailto:jsia18 at gmail.com>> wrote:
>
> when I add e.getChannel().close()
>
> java.nio.channels.ClosedChannelException
> at
> sun.nio.ch.SocketChannelImpl.ensureWriteOpen(SocketChannelImpl.java:133)
> at
> sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:324)
> at
> org.jboss.netty.channel.socket.nio.SocketSendBufferPool$PooledSendBuffer.transferTo(SocketSendBufferPool.java:239)
> at
> org.jboss.netty.channel.socket.nio.NioWorker.write0(NioWorker.java:469)
> at
> org.jboss.netty.channel.socket.nio.NioWorker.writeFromTaskLoop(NioWorker.java:392)
> at
> org.jboss.netty.channel.socket.nio.NioSocketChannel$WriteTask.run(NioSocketChannel.java:276)
> at
> org.jboss.netty.channel.socket.nio.NioWorker.processWriteTaskQueue(NioWorker.java:268)
> at
> org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:199)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
>
> it complains that it is writing to an open socket do I need to kill the
> idletimer before closing the connection? if yes, how is it done? I
> wanted to
> use persistent connection, am I still doing it right if I close the
> connection?
>
> On Mon, May 30, 2011 at 9:48 PM, Norman Maurer-2 [via Netty Forums and
> Mailing Lists] <ml-node+6419199-2003162173-301197 at n2.nabble.com
> <mailto:ml-node%2B6419199-2003162173-301197 at n2.nabble.com>> wrote:
>
> > Nope it will not close the connection. It will add a listener which
> > will get fired on a event. If you want to close a connection you
> > should use e.getChannel().close();
> >
> > Bye,
> > Norman
> >
> >
> > 2011/5/30 jsia24 <[hidden
> email]<http://user/SendEmail.jtp?type=node&node=6419199&i=0
> <http://user/SendEmail.jtp?type=node&node=6419199&i=0>>>:
> >
> >
> > > When I try to do this
> > >
> > > ChannelFuture future = e.getChannel().write(response);
> > > future.addListener(ChannelFutureListener.CLOSE);
> > >
> > > it closes the connection right? It's an IdleStateListener, when
> i gets
> > idle
> > > i write a response then will the code above close that connection?
> > >
> > >
> > > On Mon, May 30, 2011 at 9:37 PM, Trustin Lee [via Netty Forums and
> > Mailing
> > > Lists] <[hidden
> email]<http://user/SendEmail.jtp?type=node&node=6419199&i=1
> <http://user/SendEmail.jtp?type=node&node=6419199&i=1>>>
> > wrote:
> > >
> > >> Are you sure that you are not writing more responses than the
> number of
> > >> received requests? For example, sending more than one
> response for a
> > >> single request is not right.
> > >>
> > >> On 05/30/2011 10:31 PM, jsia24 wrote:
> > >>
> > >> > I'm writing a comet server.
> > >> >
> > >> > On Mon, May 30, 2011 at 9:29 PM, Trustin Lee [via Netty
> Forums and
> > >> Mailing
> > >> > Lists]<[hidden email]<
> > http://user/SendEmail.jtp?type=node&node=6419159&i=0
> <http://user/SendEmail.jtp?type=node&node=6419159&i=0>>>
> > >> wrote:
> > >> >
> > >> >> Are you writing a server, or a client?
> > >> >>
> > >> >> On 05/30/2011 09:55 PM, jsia24 wrote:
> > >> >>
> > >> >>> Here it is:
> > >> >>> I am actually saving the MessageEvents in a HashMap
> and reply
> > to
> > >> >> them
> > >> >>> when there is an event so what I did is to send a default
> message
> > when
> > >> it
> > >> >>
> > >> >>> did not receive an event for a period of time, it does
> not produce
> > an
> > >> >> error
> > >> >>> if I do not write any response to the IdleStateEvent e (
> if I just
> > do
> > >> >>> e.getChannel.close() )
> > >> >>>
> > >> >>> java.lang.IllegalStateException: cannot send more
> responses than
> > >> requests
> > >> >>
> > >> >>> at
> > >> >>>
> > >> >>
> > >>
> >
> org.jboss.netty.handler.codec.http.HttpContentEncoder.writeRequested(HttpContentEncoder.java:102)
> >
> > >>
> > >> >>
> > >> >>> at
> > org.jboss.netty.channel.Channels.write(Channels.java:611)
> > >> >>> at
> > org.jboss.netty.channel.Channels.write(Channels.java:578)
> > >> >>> at
> > >> >>>
> >
> org.jboss.netty.channel.AbstractChannel.write(AbstractChannel.java:259)
> > >>
> > >> >>> at
> > >> >> org.comet.classes.IdleHandler.channelIdle(IdleHandler.java:31)
> > >> >>> at
> > >> >>>
> > >> >>
> > >>
> >
> org.jboss.netty.handler.timeout.IdleStateAwareChannelHandler.handleUpstream(IdleStateAwareChannelHandler.java:46)
> >
> > >>
> > >> >>
> > >> >>> at
> > >> >>>
> > >> >>
> > >>
> >
> org.jboss.netty.handler.timeout.IdleStateHandler.channelIdle(IdleStateHandler.java:324)
> >
> > >>
> > >> >>
> > >> >>> at
> > >> >>>
> > >> >>
> > >>
> >
> org.jboss.netty.handler.timeout.IdleStateHandler$WriterIdleTimeoutTask.run(IdleStateHandler.java:382)
> >
> > >>
> > >> >>
> > >> >>> at
> > >> >>>
> > >> >>
> > >>
> >
> org.jboss.netty.util.HashedWheelTimer$HashedWheelTimeout.expire(HashedWheelTimer.java:519)
> >
> > >>
> > >> >>
> > >> >>> at
> > >> >>>
> > >> >>
> > >>
> >
> org.jboss.netty.util.HashedWheelTimer$Worker.notifyExpiredTimeouts(HashedWheelTimer.java:440)
> >
> > >>
> > >> >>
> > >> >>> at
> > >> >>>
> > >> >>
> > >>
> >
> org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:379)
> > >> >>> at java.lang.Thread.run(Thread.java:662)
> > >> >>>
> > >> >>> public class IdleHandler extends
> IdleStateAwareChannelHandler {
> > >> >>> public void channelIdle(ChannelHandlerContext ctx,
> > >> IdleStateEvent
> > >> >> e) {
> > >> >>> HttpResponse response = new
> DefaultHttpResponse(HTTP_1_1,
> >
> > >> OK);
> > >> >>>
> response.setContent(ChannelBuffers.copiedBuffer("{}",
> > >> >>> CharsetUtil.UTF_8));
> > >> >>> response.setHeader(CONTENT_TYPE, "text/plain;
> > >> charset=UTF-8");
> > >> >>> response.setHeader(CONTENT_LENGTH,
> > >> >>> response.getContent().readableBytes());
> > >> >>>
> response.setHeader("Access-Control-Allow-Origin", "*");
> > >> >>> ChannelFuture future =
> e.getChannel().write(response);
> > >> >>> future.addListener(ChannelFutureListener.CLOSE);
> > >> >>> }
> > >> >>> }
> > >> >>>
> > >> >>> On Mon, May 30, 2011 at 3:16 PM, Norman Maurer-2 [via
> Netty Forums
> > and
> > >> >>> Mailing Lists]<[hidden email]<
> > >> http://user/SendEmail.jtp?type=node&node=6419124&i=0
> <http://user/SendEmail.jtp?type=node&node=6419124&i=0>>>
> > >> >> wrote:
> > >> >>>
> > >> >>>> Can you post the stacktrace and your code?
> > >> >>>>
> > >> >>>> Thanks
> > >> >>>> Norman
> > >> >>>>
> > >> >>>> 2011/5/30, jsia24<[hidden email]<
> > >> >> http://user/SendEmail.jtp?type=node&node=6418081&i=0
> <http://user/SendEmail.jtp?type=node&node=6418081&i=0>>>:
> > >> >>>>
> > >> >>>>
> > >> >>>>> Hi ,
> > >> >>>>>
> > >> >>>>> When I try to send a response on the IdleHandler,
> it is
> > >> producing
> > >> >> an
> > >> >>>>> error: cannot send more responses than requests. Could
> anyone
> > help
> > >> on
> > >> >>>> how
> > >> >>>>> to resolve this?
> > >> >>>>>
> > >> >>>>> --
> > >> >>>>> View this message in context:
> > >> >>>>>
> > >> >>>>
> > >> >>
> > >>
> >
> http://netty-forums-and-mailing-lists.685743.n2.nabble.com/Error-on-writeRequested-tp6418009p6418009.html
> > >> >>>>> Sent from the Netty User Group mailing list archive at
> Nabble.com.
> >
> > >> >>>>> _______________________________________________
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> > >> >> _______________________________________________
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> > >>
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> > >>
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