[REBOL] Re: ANN: Rugby configurable (with compression)
From: petr::krenzelok::trz::cz at: 18-Feb-2002 20:12
Maarten Koopmans wrote:
>All,
>
>Added a configuration dialect (very little) to control the threading
>behaviour and compression. Added the getting started from Pat (thanks!) and
>Brett's Request brokers and dark times funny story.
>
>Also use make-doc format so there is a docs.html now as well.
>
>--Maarten
>
Hi!
just a few questions:
- I can read in the doc, that max no of threads is 100? Or just simply -
what happens to new connections, if max number of threads is hit?
- are my following thoughts correct?
I want to build following scenario (will soon do so, once I get my new
comp running)
- Let's say I have web server (Apache) + FastCGI in external mode, which
just connects to listening rebol process. Let's call such Rebol process
main-server.
- This main-server then accepts the query, and has three or more, local
or remote, Rugby powered, additional child servers available, so it can
do simple load balancing.
Apache (FastCGI protocol)
|
|
main-server (Rebol proxy = multiplexed listen mode + Rugby client)
|
------------------------------------------------
| |
|
child1 child2
child3
| |
|
ODBC ODBC ODBC
| |
|
-------------------------------------------------
|
RDBMS
I hope my drawing makes it easier to understand (I just hope my email
client wraps it correctly :-)
Now the question/brainstorming:
- Main-server uses chaining to call to one of three (or more) child
servers, so it acts as proxy. Each of child servers is allowed to
maintain e.g. 20 simultaneous connections to database, or just accept 20
request from main-server. Each database query response is e.g. 20 KB,
formatted http output. If we will send responses from all three childs
in parts, it means 60 responses at a time, each of 20 KB, it means 1.2
MB - not that bad. Let's just say it is a peak on our 10 Mbit line. But
- as for webserver responses, it is a well known issue, that it is
better to send request once complete, at a time, not just in parts - it
is much faster. So, - should also child1,2,3 send responses one at a
time, or just in parts, as they build various phases of html page? Or
does it even really matter?
- Question no 2 - main-server, our proxy, needs to use some listening
loop, store pairs of connections, do some primitive load balancing, etc.
So I need something like Rugby server, without actually Rugby server
message format :-) Well, - Imagine I want to provide above described
mechanism to other app developers - Delphi, Visual Objets, etc. - they
surely have some kind of socket or eve http classes available - so -
going thru Apache is one more step. What about to allow them to connet
directly to my proxy? What protocol should I use to communicate with
such apps? Is it good to stay with http, and some part of GET or POST
method, holding encapsulated query from above mentioned Delphi, etc.
systems?
Thanks for helping me to set my test environment. If I will be
succesfull with my tests, it will be time to build "Renata", visual
configurable Rugby based server, where you can select number of child
servers, max requests per server, etc. Time to prove even women can play
Rugby ;-)
Cheers,
-pekr-
