Trustin Lee wrote:
On Dec 11, 2007 11:51 AM, oscarcs <[EMAIL PROTECTED]> wrote:
I must develop a system made of nodes in a tree layout. Each node (computer)
has many children and only one father.
Each node sends TCP messages (using a propietary protocol) to the father, an
the father itself must send the messages to the grandfather and so on.
I have been using MINA to solve many of the communications concerns, but now
i have some doubts.
My questions are:
1. Is there a way to simulate at the lowest posible level, many sockets over
a single socket?. I mean, using a single socket to send to the grandfather
all the messages comming from the children, so i can reuse the procotol
logic in all the levels.
Yes. MINA is all about an abstract API, so you can implement a
meta-transport that does what you want.
2. If not, another aproach would be replicate all the child socktets in all
the levels, so at the upper level i will end with a single machine with too
many sockets. How much is the overhead (in reources or CPU) of using
multiple sockets vs. single socket?. Is there any limit?
I'd suggest you open as many sockets as the number of cores of your
machine at least, and each socket could host multiple sockets. If you
can implement a virtual socket, then it shouldn't be that difficult to
implement.
It would be really a great addition to MiNA project if such a facility
is provided out of the box.
Hmm, this sounds very much like SCTP or like BEEP channels. beep4j
builds on MINA so it might have something similar already implemented.
-Eero
