Error on writeRequested

["이희승 (Trustin Lee)"]

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]<ml-node+6419124-1838478020-301197 at n2.nabble.com>  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>>
>>   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>>:
>>>>
>>>>
>>>>> 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
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>> --
>> Trustin Lee, http://gleamynode.net/
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-- 
Trustin Lee, http://gleamynode.net/