The design issue is detailed as following:
One application will write data to a flat file about every hour. Once
the flat file is updated, it must be transmitted to three different
remote locations simultaneously. The requirement is that the three
remote locations must receive the flat file at the same time within a
second, or the transfer was failed, that is, it cannot be that some
locations receive the flat file and the others do not.
What kind of network protocol and interface is best to meet this
requirement to transport a flat file from one location to three
locations simultaneously within a second? Thanks in advance.
4  1746  sa******@gmail. com (in 11************* *********@n13g2 00...legr oups.com) said:
| The design issue is detailed as following:
|
| One application will write data to a flat file about every hour.
| Once the flat file is updated, it must be transmitted to three
| different remote locations simultaneously. The requirement is that
| the three remote locations must receive the flat file at the same
| time within a second, or the transfer was failed, that is, it
| cannot be that some locations receive the flat file and the others
| do not.
|
| What kind of network protocol and interface is best to meet this
| requirement to transport a flat file from one location to three
| locations simultaneously within a second? Thanks in advance.
This isn't a C language issue. You may find it helpful to ask this
question in news:comp.unix. programmer and, perhaps, to do a web search
and read up on multicast networking.
--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA http://www.iedu.com/DeSoto
On 9 Aug 2006 07:25:21 -0700, "sa******@gmail .com"
<sa******@gmail .comwrote:
>The design issue is detailed as following:
One application will write data to a flat file about every hour. Once
the flat file is updated, it must be transmitted to three different
remote locations simultaneously. The requirement is that the three
remote locations must receive the flat file at the same time within a
second, or the transfer was failed, that is, it cannot be that some
locations receive the flat file and the others do not.
What kind of network protocol and interface is best to meet this
requirement to transport a flat file from one location to three
locations simultaneously within a second? Thanks in advance.
I would use tribal drums.
Oz
--
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing on usenet and in e-mail? sa******@gmail. com wrote:
What kind of network protocol and interface is best to meet this
requirement to transport a flat file from one location to three
locations simultaneously within a second? Thanks in advance.
Your time constraints are going to require some kind of feedback, not to
mention clock synchronization . But in general, rsync (over ssl) is what
you are looking for, or looking to reinvent. sa******@gmail. com said:
The design issue is detailed as following:
One application will write data to a flat file about every hour. Once
the flat file is updated, it must be transmitted to three different
remote locations simultaneously. The requirement is that the three
remote locations must receive the flat file at the same time within a
second, or the transfer was failed, that is, it cannot be that some
locations receive the flat file and the others do not.
Reduce your problem. You have a file N bytes in size, where N might be
large. To deliver N bytes to three separate locations within a second of
each other - 3N bytes all told - may not be possible. So break your file up
into two partitions, respectively N-1 bytes and 1 byte in size. Send the
first partition at your leisure, and get confirmation that everyone has it.
Then send the 1-byte partition, and get confirmation for that, with - of
course - a timestamp on it. (Note that, if you get each of the three
confirmations for the second partition within one second of sending, you
don't have to check the timestamps!)
--
Richard Heathfield
"Usenet is a strange place" - dmr 29/7/1999 http://www.cpax.org.uk
email: rjh at above domain (but drop the www, obviously) This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Alex Ang |
last post by:
I have written the following VBScript program. It is stored into a
file "map_drive.vbs". It successfully mapped to a network drive
\\server1\data.
Dim WshNetwork
Set WshNetwork = WScript.CreateObject("WScript.Network")
sPwd = inputbox("Enter password")
WshNetwork.MapNetworkDrive "J:", "\\server1\data", false,
"xyz_net\John", sPwd
Msgbox "Drives has been map successful"
|
by: Thomas |
last post by:
after spending countless hours trying, i give up and hope to get some help
in here.
on server1 i got the web myweb.com with my test.asp. in the test.asp, i'm
trying to read a file from an UNC path with a FSO:
Set myFile =
Server.CreateObject("Scripting.FileSystemObject").GetFile("\\server2\myshare\myfile.txt")
this fails with an Permission Denied.
here's the deal:
|
by: ILCSP |
last post by:
Hi,this has been bothering me for a while now. I have 2 MS Access 2000
databases, the real one that everybody uses (in the NT network) and the
one I use to design new stuff. After I test the new forms on mine, I
import them to the real database so everybody can use it.
However, some of the code that works perfectly in my design database
fails when I import the form to the network database. Sometimes the
code is as simple as...
|
by: Buddy |
last post by:
Hello,
I have an application that references about 40 assemblies
(approx 80MB in total). I've installed the application on
the network share and given a client PC full trust access.
When I launch the application from the network it takes
approx 4 minutes to startup, I've done network traces and
found that it's spending all it's time downloading the 40
assemblies (approx 80MB).
|
by: Boris |
last post by:
I observe the following strange behavior of my application.
Let say we have managed application MyApp.exe which depend
on a few assemblies MyAssembly1.dll, MyAssembly2.dll and
MyAssembly3.dll. The assemblies I mentione have strong names.
I build the exe and all assemblies on my computer and install
assemblies to GAC. I run MyApp.exe, test it and everything is OK.
Then I copy all executable files (exe and dll) to our network server.
| | |
by: Alex Maghen |
last post by:
This is weird
On my WinXP development box, database calls made from within my GLOBAL.ASAX go to SQLServer as user "ASPNET" even though I have impersonation turned on in my web.config. That's fine
Now, when I move the whole application over to my Windows 2003 Server box, during the GLOBAL.ASAX calls to SQLServer, I get "Login failed for NT AUTHORITY\NETWORK SERVICE." I don't understand this. "NT AUTHORITY\NETWORK SERVICE" isn't even a user...
|
by: Agnes |
last post by:
My client hold its MS SQL server in hkbranch, Both china and hong kong
office can run the vb.net application very well via VPN. Now, they want to
reduce cost and move the MS SQL server to china 's data centre .
During testing period, the user cannot connect to the SQL server and alwasy
got "General Network Error", we said that the network connection may not be
stable and suggest move back the SQL server.
However, the Network Engineer of...
|
by: sagenaut |
last post by:
The design issue is detailed as following:
One application will write data to a flat file about every hour. Once
the flat file is updated, it must be transmitted to three different
remote locations simultaneously. The requirement is that the three
remote locations must receive the flat file at the same time within a
second, or the transfer was failed, that is, it cannot be that some
locations receive the flat file and the others do...
|
by: Jose Cintron |
last post by:
I created a pretty basic program based on the "Windows Forms Application"
template using C++ in VS 2005. When I run the program from my local system
it runs properly (do happy dance), now when I copy the same program to a
network share (I have a drive mapped to it) and execute the same program I
get an error message that reads
=== Start Error Pop-up Window ===
Reporter.exe has encountered a problem and needs to close. We
are sorry for...
|
by: JDeats |
last post by:
I'm in a situation where it's difficult to get on-site and
troubleshoot, so I'm looking for scenarios from those experienced on
what might be causing this problem.
I have a .NET 2.0 WinForms based application that that has a few web
references. The application makes the first web service/SOAP call when
the user first launches the app to submit product registration
information. The user is getting an generic "network error message"
that...
|
by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
| | |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| | |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
| |
