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Posted to dev@mina.apache.org by Ol...@noweda.de on 2007/04/11 11:40:00 UTC
problems in ramp-up
Hi,
i have used Mina to re-implement a messaging gateway
(Unix/Linux to IBM-Mainframe).
The spoken protocol is proprietary and i am really happy
that Mina's API was so easy to understand.
Now i am experiencing some problems during the ramp-up phase.
When the first bunch of connections (about 10 in parallel) is made to
my mina-server, i get some network timeouts.
If i kill the first 10 connections and give them a second try, everything
works fine and i don't get any timeouts. Any ideas or advice?
Or is it better to ramp-up the client connections one after a time
with a short waiting period?
Regards, Oliver Michels
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Oliver Michels
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Re: problems in ramp-up
Posted by Trustin Lee <tr...@gmail.com>.
On 4/11/07, Oliver.Michels@noweda.de <Ol...@noweda.de> wrote:
>
> Hi,
>
> i have used Mina to re-implement a messaging gateway
> (Unix/Linux to IBM-Mainframe).
> The spoken protocol is proprietary and i am really happy
> that Mina's API was so easy to understand.
>
> Now i am experiencing some problems during the ramp-up phase.
> When the first bunch of connections (about 10 in parallel) is made to
> my mina-server, i get some network timeouts.
>
> If i kill the first 10 connections and give them a second try, everything
> works fine and i don't get any timeouts. Any ideas or advice?
> Or is it better to ramp-up the client connections one after a time
> with a short waiting period?
It might be taking long time to allocate direct buffers initially.
Please try to set the default buffer type to heap buffer:
ByteBuffer.setUseDirectBuffers(true);
ByteBuffer.setAllocator(new SimpleByteBufferAllocator());
HTH,
Trustin
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