It's unlikely that MINA misses any data unless there's disconnection.
It might be because you are releasing the buffer unnecessarily.
Please remove the two lines (buffer.release() and buffer = null).
Also, make sure no exception is caught in your IoHandler
implementation.
There's also possibility you are not taking care of TCP/IP packet
fragmentation in NotificationObject.getObject(...) (i.e. two messages
are received in one ByteBuffer.)
Trustin
On Dec 11, 2007 11:11 PM, AmalRaj P <[EMAIL PROTECTED]> wrote:
>
> In my project I am using MINA framework for notification, with multiple
> clients in place I faced packet loss issues.
>
> Then I planned to setup a sample environment with a server and three clients
> connected to it.
>
> Server:
>
> Will publish numbers generated in loop to all clients connected/registered
>
> public void run()
> {
> IoSession session = null;
> int j = 0;
> while (j < 500)
> {
> for (int i = 0; i < sessions.size(); i++)
> {
> String msg = "For client " + i + " value sent is:" + j;
> System.out.println(msg);
> byte data[] = NotificationObject.getBytes(new String(msg));
> ByteBuffer buffer = ByteBuffer.wrap(data);
> session = (IoSession) sessions.get(i);
> session.write(buffer);
> buffer.release();
> buffer = null;
>
> }
> j++;
> }
> }
>
>
> Client:
>
> Will just receive the message and print it
>
> public void messageReceived(IoSession session, Object message)
> {
> ByteBuffer buffer = (ByteBuffer) message;
> byte[] data = new byte[buffer.remaining()];
> buffer.get(data);
> Object obj = NotificationObject.getObject(data);
> System.out.println("ClientHandler : data received is : " + obj);
> }
>
>
> Results:
>
> Client1 Missed: 203, 253, 293
>
> Client2 Missed: 204, 252
>
> Client3 Missed: 247, 252
>
> I don't know why I am getting packet loss in the Client side. Need some help
> as every single notification in our process cannot be missed.
>
> I have attached the test setup. Just use the batch files inside bin. Sample
> logs where you can see the issues are also available.
> http://www.nabble.com/file/p14274506/MinaTestSetup.zip MinaTestSetup.zip
> --
> View this message in context:
> http://www.nabble.com/Packet-loss-Issue-tp14274506s16868p14274506.html
> Sent from the Apache MINA Support Forum mailing list archive at Nabble.com.
>
>
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