Hi
I am using mina core 2 snap shot "mina-core-2.0.0-M1-20071219.081925-109".
Here is the code snippet of the time server
IoAcceptor acceptor = new NioSocketAcceptor();
acceptor.getFilterChain().addLast("codec", new ProtocolCodecFilter(
new TextLineCodecFactory(Charset.forName("UTF-8"))));
acceptor.setHandler(new TimeServerHandler());
acceptor.setDefaultLocalAddress(new InetSocketAddress(5683));
acceptor.bind();
complete code can be found at http://pastebin.com/f22ec4749
I have executed the same program on both windows and linux platforms and the
problem is the same. When my client connects to mina server, i can see a lot
of "message written..." lines in server's terminal window but hardly any
messages reach client. Here is the client code snippet.
while(true) {
writer.write("jmd\n");
writer.flush();
}
A sleep of 10 solves the problem. But this behaviour seems to contradict
this:
I'm not able to answer your Q 1 and 3 right now, but I can assure you
> that MINA can handle high load from many clients. We are using it into
> Apache Directory Server, and were able to simulate this with hundreds of
> clients and thousands of messages per second, for hours ( we did a test
> which lasted 72 hours, for hundreds of millions messages).
>
I hope i am configuring something wrong here. Please let me know.
Thanks
Ashish
On Dec 28, 2007 8:55 AM, Trustin Lee <[EMAIL PROTECTED]> wrote:
> Hi Ashish,
>
> On Dec 28, 2007 2:21 AM, Ashish Sharma <[EMAIL PROTECTED]> wrote:
> > Hi
> >
> > Recently I have been experimenting with mina core 2 and I have a few
> > questions regarding the behaviour of mina in some sample programs I
> made.
> >
> > here is the client code. its simple, it simply rams as many messages as
> > possible into the server.
> >
> > http://pastebin.com/m14ac361e
> >
> > Now I made two servers. One mina based, which is simply the date/time
> echo
> > server as described in the documentation. The second one is a simple
> "one
> > thread per client" server. Here is the code
> http://pastebin.com/m3a5a14a7
> >
> > Now the result from both the servers differ a lot. The second server
> works
> > in lock step with client and responds to messages without any delay. But
> > with mina server the response is very slow and after about 10 messages
> the
> > response is almost nill and after a few seconds I start getting out of
> > memory exceptions while creating more date objects.
> >
> >
> > Now I have the following questions (I very good spirit)
> >
> > 1. What is the reason behind this behaviour ?
>
> Please make sure that you are using heap buffers and configured the
> thread model correctly. And I hope you are using the latest stable
> release.
>
> > 3. Is there a solution to this ? IMHO, first server example demonstrates
> > that such high load can be handled at server.
>
> If your client connects and disconnects very frequently, it might slow
> down your MINA application. Please try to keep the connection alive
> whenever possible.
>
> HTH,
> Trustin
> --
> what we call human nature is actually human habit
> --
> http://gleamynode.net/
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>
