users@grizzly.java.net

Re: java.io.IOException: An existing connection was forcibly closed by the remote host

From: John ROM <snake-john_at_gmx.de>
Date: Fri, 01 Aug 2008 11:34:58 +0200

>
> Thanks for your quick response.
>
> You are correct. I found my ProtocolFilter has bug and will stop parsing
> after releaseBuffer() is called.
>
> and I feel it really difficult to debug. Pls help.
>
> I wrote a protoclfilter before and did post here.
>
> Oleksiy Stashok help me to fine tune the code:

Well then it will work (((-:
>
> http://www.nabble.com/file/p18758541/MyProcessorFilter.java
> MyProcessorFilter.java
>

Just to make sure that you have a good setup
and we are discussing the same thing :

On server side you must not add an additional ReadFilter since
MyParserProtocolFilter already extends ReadFilter so on Server side you have:

ProtocolChain protocolChain = pciHandler.poll();
protocolChain.addFilter(new MyParserProtocolFilter());
protocolChain.addFilter(new MyProcessorFilter());

Since you are plugging a Parser in, which expects a message which starts with byte 0x02
and ends with 0x03 you want to do on client side something like:

ByteBuffer buffer = ByteBuffer.allocate(18);
buffer.put(MyProtocolParser.STX);
buffer.put( "Test".getBytes());
buffer.put(MyProtocolParser.ETX);
buffer.flip();

well with the above config the codes runs ok on my machine?










>
>
> John ROM wrote:
> >
> >
> >>
> >>
> >> Thanks for your quick response.
> >>
> >> Yes, you are correct.
> >>
> >> Actually the original problem is, i did add filters but it somehow stop
> >> reading / stop parsing / parsing too slow resulting the exception in
> >> client
> >> side.
> > if you just add a grizzly ReadFilter your code should work fine so
> > maybe its a problem with your custom filters?
> >
> >>
> >>
> >>
> >> John ROM wrote:
> >> >
> >> >
> >> >> I got this exception but i hv no idea about the root cause.
> >> >>
> >> >> Please help:
> >> >>
> >> >> http://www.nabble.com/file/p18739932/TestServer.java TestServer.java
> >> >> http://www.nabble.com/file/p18739932/MyClient.java MyClient.java
> >> >>
> >> >
> >> > In TestServer.java you need to add Filters to the ProtocolChain.
> >> Otherwise
> >> > a Protocol chain does not make any sense!? Propably some grizzly
> >> timeout
> >> > or maybe a full
> >> > tcp buffer forces the exception
> >> > Many Greetings
> >> > John
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >> output:
> >> >>
> >> >> 13000
> >> >> 14000
> >> >> 15000
> >> >> Exception in execute ... java.io.IOException: An existing connection
> >> was
> >> >> forcibly closed by the remote host
> >> >> count = 15361
> >> >> java.io.IOException: An existing connection was forcibly closed by
> the
> >> >> remote host
> >> >> at sun.nio.ch.SocketDispatcher.write0(Native Method)
> >> >> at
> sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:33)
> >> >> at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:104)
> >> >> at sun.nio.ch.IOUtil.write(IOUtil.java:75)
> >> >> at
> >> sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:334)
> >> >> at
> >> >>
> >> com.sun.grizzly.TCPConnectorHandler.write(TCPConnectorHandler.java:424)
> >> >> at test.MyClient.execute(MyClient.java:75)
> >> >> at test.MyClient.main(MyClient.java:36)
> >> >> program exit!
> >> >>
> >> >> --
> >> >> View this message in context:
> >> >>
> >>
> http://www.nabble.com/java.io.IOException%3A-An-existing-connection-was-forcibly-closed-by-the-remote-host-tp18739932p18739932.html
> >> >> Sent from the Grizzly - Users mailing list archive at Nabble.com.
> >> >
> >> > --
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> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/java.io.IOException%3A-An-existing-connection-was-forcibly-closed-by-the-remote-host-tp18739932p18745961.html
> >> Sent from the Grizzly - Users mailing list archive at Nabble.com.
> >>
> >>
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